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Fix it Sunday... Master Mechanic, ask me anything!

 
Anonymous Coward
User ID: 43815060
United States
08/14/2022 11:42 AM
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Re: Fix it Sunday... Master Mechanic, ask me anything!
Oxygen O2 sensor light.

Someone told me you can buy a product to clean it and you just pour it in your gas tank and fix this issue?
 Quoting: Life Is a BEACH!


an O2 sensor would probably be about $100, maybe less, at rockauto

they're a little bit of a pain to replace yourself but not too bad
Trained NoticerModerator
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08/14/2022 11:42 AM

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Re: Fix it Sunday... Master Mechanic, ask me anything!
2001 Dodge Ram Diesel Cummins

Hard start after sitting, will kill batteries after sitting
overnight it takes so much cranking.

Even when bumping starter to pre-run the lift pump
several times.

Disconnected hose at injector pump, ran lift pump, tons of fuel.

Once started, runs fine.

(I have installed a check valve before and after the fuel
filter, so fuel is not draining back that way.)

No evidence of fuel leak anywhere.

Very frustrating.

Any ideas? Thanks in advance.

goob5
For those who believe, no proof is necessary. For those who don't believe, no proof is possible. (Stuart Chase)

It's easier to fool people than to convince them that they have been fooled. (Mark Twain)
Anonymous Coward
User ID: 83867035
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08/14/2022 11:43 AM
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Re: Fix it Sunday... Master Mechanic, ask me anything!
Let's do this.

:cfbutt:
 Quoting: DieselTech


My question.

Upstream Air/Fuel sensors on a ricer

What indicates a lean condition when looking at the milliamps on a scan tool?
Anonymous Coward
User ID: 84014134
United States
08/14/2022 11:43 AM
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Re: Fix it Sunday... Master Mechanic, ask me anything!
Oxygen O2 sensor light.

Someone told me you can buy a product to clean it and you just pour it in your gas tank and fix this issue?
 Quoting: Life Is a BEACH!


You cannot clean O2 sensors and they very seldom actually "go shot".


A warning light tells you the O2 sensor is not reading the right values and you have other problems
Anonymous Coward
User ID: 79972621
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08/14/2022 11:43 AM
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Re: Fix it Sunday... Master Mechanic, ask me anything!
I have a 2008 chevy malibu 2.4 . I have no start condition with dash saying powersteering, traction control,service esc, low fuel(halftank in there). I have changed fuse box and then new pre programmed ECU and still not starting. I have tested starter, battery and connections to it,grounds, relays, fuses, fuel pump relay and fuel pump, my friend used his scanner and can system is working so is bcm. His snap on scanner had a u2105 code but my autel has u0100 coming up.i also tested all of the connectors for shorts cleaned them and put dielectric grease on them. I am so stumped with why the car isnt starting, the only thing I'm thinking now is the igntion switch but my mechanic buddy doesnt think it's that. I've been working on it for 2 weeks now and dont know what to do from here. I would appreciate your any input or suggestions. Thanks
Anonymous Coward
User ID: 84014134
United States
08/14/2022 11:45 AM
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Re: Fix it Sunday... Master Mechanic, ask me anything!
2001 Dodge Ram Diesel Cummins

Hard start after sitting, will kill batteries after sitting
overnight it takes so much cranking.

Even when bumping starter to pre-run the lift pump
several times.

Disconnected hose at injector pump, ran lift pump, tons of fuel.

Once started, runs fine.

(I have installed a check valve before and after the fuel
filter, so fuel is not draining back that way.)

No evidence of fuel leak anywhere.

Very frustrating.

Any ideas? Thanks in advance.

:goob5:
 Quoting: Trained Noticer


You have a Chrysler product

PERIOD

Good luck, you're going to need it
Anonymous Coward
User ID: 84014134
United States
08/14/2022 11:46 AM
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Re: Fix it Sunday... Master Mechanic, ask me anything!
I have a 2008 chevy malibu 2.4 . I have no start condition with dash saying powersteering, traction control,service esc, low fuel(halftank in there). I have changed fuse box and then new pre programmed ECU and still not starting. I have tested starter, battery and connections to it,grounds, relays, fuses, fuel pump relay and fuel pump, my friend used his scanner and can system is working so is bcm. His snap on scanner had a u2105 code but my autel has u0100 coming up.i also tested all of the connectors for shorts cleaned them and put dielectric grease on them. I am so stumped with why the car isnt starting, the only thing I'm thinking now is the igntion switch but my mechanic buddy doesnt think it's that. I've been working on it for 2 weeks now and dont know what to do from here. I would appreciate your any input or suggestions. Thanks
 Quoting: Anonymous Coward 79972621


Replace ECU
Maiya
It's kind of fun to do the impossible.

User ID: 83702605
United States
08/14/2022 11:47 AM

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Re: Fix it Sunday... Master Mechanic, ask me anything!
2022 Toyota Corolla SE. Bought new from dealer. Behavior before dealer took a look: left rear makes a noise like parking break stuck when i would break normally over 45 mph. Would happen once a day, every day. Then nothing unless it sat at least overnight. Never did it a second time after first and only occurrence of the day.

Dealer did test drive where nothing was heard, removed left rear wheel and said they checked “everything” says they found nothing wrong.

Car still makes same noise but is inconsistent after dealer appointment. Not every day like before.

All software up to date.
 Quoting: Maiya


brake pad noise ? nothing to worry about if it only happens while you are braking and the brakes work properly
 Quoting: Anonymous Coward 43815060


I had the same thought in the beginning. Car now has several thousand miles on it. I have had it for months now.

Owned lots of cars in my 59 years. Never seen this issue.
They never thought she would lose. Now they all lose.
Anonymous Coward
User ID: 43815060
United States
08/14/2022 11:49 AM
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Re: Fix it Sunday... Master Mechanic, ask me anything!
why don't mechanics show butt crack

butt

like plumbers ?
 Quoting: Anonymous Coward 43815060


glassesoff
 Quoting: Anonymous Coward 43815060


needs a trend setter to get it going

show butt crack in the shop, it will catch on and become the new fad
Anonymous Coward
User ID: 84014134
United States
08/14/2022 11:50 AM
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Re: Fix it Sunday... Master Mechanic, ask me anything!

I have a 2008 chevy malibu 2.4 . I have no start condition with dash saying powersteering, traction control,service esc, low fuel(halftank in there). I have changed fuse box and then new pre programmed ECU and still not starting. I have tested starter, battery and connections to it,grounds, relays, fuses, fuel pump relay and fuel pump, my friend used his scanner and can system is working so is bcm. His snap on scanner had a u2105 code but my autel has u0100 coming up.i also tested all of the connectors for shorts cleaned them and put dielectric grease on them. I am so stumped with why the car isnt starting, the only thing I'm thinking now is the igntion switch but my mechanic buddy doesnt think it's that. I've been working on it for 2 weeks now and dont know what to do from here. I would appreciate your any input or suggestions. Thanks
 Quoting: Anonymous Coward 79972621

You DID NOT install a "new" ECU, you installed a junk ECU that has the same problems as the old one and was chemically cleaned to look new.

Your BEST BET is to find a wrecked Malibu in the junk yard and snag the ECU out of it
Anonymous Coward
User ID: 72537009
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08/14/2022 11:52 AM
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Re: Fix it Sunday... Master Mechanic, ask me anything!
Pulsating brake pedal at low speed 2001 Chevy avalanche what needs to be replaced thanks
 Quoting: Anonymous Coward 84013441


Pads and rotors and check for sticking calipers.
Peter Quill

User ID: 83079681
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08/14/2022 11:55 AM
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Re: Fix it Sunday... Master Mechanic, ask me anything!
What is the meaning of life?
 Quoting: Anonymous Coward 84013761


42!

This from an aircraft mechanic!
Guardian
Hoseman

User ID: 80009574
United States
08/14/2022 11:56 AM
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Re: Fix it Sunday... Master Mechanic, ask me anything!
i may at some point want to rebuild my engine (2010 toyota corolla)

how hard is this? it's a matter of replacing parts like rings, etc, isn't it?

if i buy a rebuild kit would it come with instructions

i do have the service manual which gives various procedures like removing the engine, replacing a ring probably, etc
 Quoting: Anonymous Coward 43815060


You will need several thousand dollars in tools you DO NOT already have.
Your best most economic move is to find a wrecked Corolla with a good low miles engine
 Quoting: Anonymous Coward 84014134


i have a good amount of tools, socket sets, wrenches etc

don't have a micrometer .. or very specialized tools

also i don't have an engine crane or a stand, an engine crane is about $250, an engine stand probably about $150
 Quoting: Anonymous Coward 43815060


You are going to run into alot of specialized tools you don't have
 Quoting: Anonymous Coward 84014134


Some auto parts stores like Autozone and O'Reilly's have a tool loan program. You have to put down a deposit for the price of the tool but you get it back if you return it in working condition. You have to be careful thought, some of the more delicate tools might have been damaged by previous users. I got compression testers from both places and they both didn't register any compression at all.

Maybe try watching some YouTubes on engine rebuilds.
Anonymous Coward
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08/14/2022 11:59 AM
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Re: Fix it Sunday... Master Mechanic, ask me anything!
Pulsating brake pedal at low speed 2001 Chevy avalanche what needs to be replaced thanks
 Quoting: Anonymous Coward 84013441


Pads and rotors and check for sticking calipers.
 Quoting: Anonymous Coward 72537009


A pulsing brake pedal indicates warped rotors.

No amount of un-sticking calipers or replacing pads will fix it, you will need NEW rotors to fix it.
Anonymous Coward
User ID: 84014134
United States
08/14/2022 12:00 PM
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Re: Fix it Sunday... Master Mechanic, ask me anything!
...


You will need several thousand dollars in tools you DO NOT already have.
Your best most economic move is to find a wrecked Corolla with a good low miles engine
 Quoting: Anonymous Coward 84014134


i have a good amount of tools, socket sets, wrenches etc

don't have a micrometer .. or very specialized tools

also i don't have an engine crane or a stand, an engine crane is about $250, an engine stand probably about $150
 Quoting: Anonymous Coward 43815060


You are going to run into alot of specialized tools you don't have
 Quoting: Anonymous Coward 84014134


Some auto parts stores like Autozone and O'Reilly's have a tool loan program. You have to put down a deposit for the price of the tool but you get it back if you return it in working condition. You have to be careful thought, some of the more delicate tools might have been damaged by previous users. I got compression testers from both places and they both didn't register any compression at all.

Maybe try watching some YouTubes on engine rebuilds.
 Quoting: Hoseman


They have the basics and some diagnostic tools
Anonymous Coward
User ID: 43815060
United States
08/14/2022 12:01 PM
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Re: Fix it Sunday... Master Mechanic, ask me anything!
...


You will need several thousand dollars in tools you DO NOT already have.
Your best most economic move is to find a wrecked Corolla with a good low miles engine
 Quoting: Anonymous Coward 84014134


i have a good amount of tools, socket sets, wrenches etc

don't have a micrometer .. or very specialized tools

also i don't have an engine crane or a stand, an engine crane is about $250, an engine stand probably about $150
 Quoting: Anonymous Coward 43815060


You are going to run into alot of specialized tools you don't have
 Quoting: Anonymous Coward 84014134


Some auto parts stores like Autozone and O'Reilly's have a tool loan program. You have to put down a deposit for the price of the tool but you get it back if you return it in working condition. You have to be careful thought, some of the more delicate tools might have been damaged by previous users. I got compression testers from both places and they both didn't register any compression at all.

Maybe try watching some YouTubes on engine rebuilds.
 Quoting: Hoseman


i bought compression tester year or 2 ago which is why i think i need to rebuild .. it was about $35

other tools needed ? i think for some measurements you need a micrometer
Anonymous Coward
User ID: 83698768
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08/14/2022 12:03 PM
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Re: Fix it Sunday... Master Mechanic, ask me anything!
I have a 2005 4runner. It has a vibration when going down the highway but vibration stops when you let off gas or put it in neutral. I have ruled out tires, wheels, bearings etc.

What do you think?
Anonymous Coward
User ID: 79495032
United States
08/14/2022 12:07 PM
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Re: Fix it Sunday... Master Mechanic, ask me anything!
hello i hope you get to answer me

I've got a 1995 toyota avalon 390,000 miles 80k of them i put on in less than a year. i commute across 3 states for work.

engine light is on for catalytic converter and some solinoids
so is the override light it flashes

i bought it for 950 bucks with all the lights on in-fact in the same condition it is in now. it pretty much drives the exact same as when i bought it.

only thing i NEEDED to replace has been a quick strut and lower control arm from repeatedly hitting this very deep pot hole on the same wheel over the course of my driving it.

is there anything i should do to keep it on the road i regularly change the oil and i regularly check all fluids.

oh and can i pull off and trash the metal cover on the exahaust?
Anonymous Coward
User ID: 12524540
United States
08/14/2022 12:07 PM
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Re: Fix it Sunday... Master Mechanic, ask me anything!
...


Okay, I'll give this a shot because so far four different Toyota dealerships have been unable to resolve this issue.

Vehicle: 2008 Toyota Tacoma SR5 4x4, 5-speed manual transmission. 238,000 miles, original engine and transmission. I am a Nazi when it comes to preventative maintenance, so I take care of my vehicles.

Issue: When I hit ~2,500 RPM in 4th gear and engage the clutch, the throttle sticks at 2,500 RPM for approximately five to ten seconds and then very slowly starts to wind down to normal. If I punch the accelerator it unsticks and returns to normal.

Problem: IT ONLY DOES THIS IN 4TH GEAR. If I reach 2,500 RPM in any other gear and engage the clutch it behaves perfectly normally. I can reproduce this at will.

Repairs made so far by various dealerships:
- Disassemble, inspect, and clean throttle assembly - no problems found
- Clutch replacement (An unnecessary repair that I ended up not paying for when I complained - that's a different thread)
- Head gasket replacement (for a different problem, but interestingly enough, it made a difference for about two weeks and then it came back)

At this point I am half tempted to just take it in and tell them to replace the throttle assembly even though they say there's nothing wrong with it. My big question is why does it only do it in 4th gear? How could throttle "know" what gear I'm in?

Good luck, and thanks!
 Quoting: Riff-Raff


4 cylinder or 6?

It sounds like rev hang. It's programmed in for emissions, and Toyota's were so bad about it the aftermarket developed boxes to alleviate it.

[link to www.toyotanation.com (secure)]

Had the dealer tried a software update?
 Quoting: DieselTech


4 cylinder. No dealership has mentioned anything about a software update.
 Quoting: Riff-Raff


Okay, another question now: If this is programmed by design, why did it start doing it all of a sudden 14 years after I purchased it? It hasn't always done this. Could some dealer have performed a software update that caused it in the first place??
 Quoting: Riff-Raff


Replace the throttle body. Happened on my toyo...design flaw on the flap making it "stick." I think there was a TSB on it. I had my guy replace it and reprogram....always reprogram.
Catseye

User ID: 83923258
Dominican Republic
08/14/2022 12:07 PM
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Re: Fix it Sunday... Master Mechanic, ask me anything!
more of a general question

my Jeep GC had the Service 4WD light come on, so the mechanic checked and found I need the transfer case module, it had just burned out

so I've ordered it and he's very competent, known him a long time, not worried about it

but what makes chips burn out? is there a way to make sure they don't burn out? was it a weakling chip from the start? my mechanic doesn't know why it burned out, I asked if maybe I spilled water in the console or something and he said no

I'm pretty nice to my cars, always doing preventative maintenance and not punishing them, but if things go bad we aren't going to have chips available
Forgive your enemies, it messes with their heads.

Thoughts create, mind them well.
JustmeTX

User ID: 80193276
United States
08/14/2022 12:10 PM

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Re: Fix it Sunday... Master Mechanic, ask me anything!
2000 Buick LeSabre

My A/C comes and goes. Works sometimes, others not. Why does it hate me?
 Quoting: Buick Sedan Man 80450741


Burned fan clutch relay? Or maybe the Clutch itself?

Last Edited by JustmeTX on 08/14/2022 12:10 PM
Justme
Anonymous Coward
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08/14/2022 12:10 PM
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Re: Fix it Sunday... Master Mechanic, ask me anything!
hello i hope you get to answer me

I've got a 1995 toyota avalon 390,000 miles 80k of them i put on in less than a year. i commute across 3 states for work.

engine light is on for catalytic converter and some solinoids
so is the override light it flashes

i bought it for 950 bucks with all the lights on in-fact in the same condition it is in now. it pretty much drives the exact same as when i bought it.

only thing i NEEDED to replace has been a quick strut and lower control arm from repeatedly hitting this very deep pot hole on the same wheel over the course of my driving it.

is there anything i should do to keep it on the road i regularly change the oil and i regularly check all fluids.

oh and can i pull off and trash the metal cover on the exahaust?
 Quoting: Anonymous Coward 79495032


I'd replace the cat before it disintegrates or causes an obstruction which will leave you stranded.
Anonymous Coward
User ID: 80701872
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08/14/2022 12:11 PM
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Re: Fix it Sunday... Master Mechanic, ask me anything!
I have a 2005 4runner. It has a vibration when going down the highway but vibration stops when you let off gas or put it in neutral. I have ruled out tires, wheels, bearings etc.

What do you think?
 Quoting: Anonymous Coward 83698768


I'm not 100% sure without diagnosing it but it sounds like you need a new Johnson Rod.
Anonymous Coward
User ID: 79495032
United States
08/14/2022 12:12 PM
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Re: Fix it Sunday... Master Mechanic, ask me anything!
hello i hope you get to answer me

I've got a 1995 toyota avalon 390,000 miles 80k of them i put on in less than a year. i commute across 3 states for work.

engine light is on for catalytic converter and some solinoids
so is the override light it flashes

i bought it for 950 bucks with all the lights on in-fact in the same condition it is in now. it pretty much drives the exact same as when i bought it.

only thing i NEEDED to replace has been a quick strut and lower control arm from repeatedly hitting this very deep pot hole on the same wheel over the course of my driving it.

is there anything i should do to keep it on the road i regularly change the oil and i regularly check all fluids.

oh and can i pull off and trash the metal cover on the exahaust?
 Quoting: Anonymous Coward 79495032


I'd replace the cat before it disintegrates or causes an obstruction which will leave you stranded.
 Quoting: Anonymous Coward 12524540


i already fixed this problem by punching a huge hole before the cat i need to get in there and remove the fancy metal heat sheild that is on the entire exhaust system but its so old and rusted i'll have to cut it off
Anonymous Coward
User ID: 12524540
United States
08/14/2022 12:14 PM
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Re: Fix it Sunday... Master Mechanic, ask me anything!
2000 Buick LeSabre

My A/C comes and goes. Works sometimes, others not. Why does it hate me?
 Quoting: Buick Sedan Man 80450741


Burned fan clutch relay? Or maybe the Clutch itself?
 Quoting: JustmeTX


Nah...it's a faulty expansion valve that's leaking which is causing your a/c to cycle on and off. Replace valve then refill with 134A. Don't do it yourself! 134A is toxic, unlike R12. It causes scrotal tumors in lab rats.
BroDude

User ID: 81444341
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08/14/2022 12:16 PM
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Re: Fix it Sunday... Master Mechanic, ask me anything!
whats your suggestion for the best used car, truck or suv right now that will require low maintenance?
Anonymous Coward
User ID: 12524540
United States
08/14/2022 12:18 PM
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Re: Fix it Sunday... Master Mechanic, ask me anything!
hello i hope you get to answer me

I've got a 1995 toyota avalon 390,000 miles 80k of them i put on in less than a year. i commute across 3 states for work.

engine light is on for catalytic converter and some solinoids
so is the override light it flashes

i bought it for 950 bucks with all the lights on in-fact in the same condition it is in now. it pretty much drives the exact same as when i bought it.

only thing i NEEDED to replace has been a quick strut and lower control arm from repeatedly hitting this very deep pot hole on the same wheel over the course of my driving it.

is there anything i should do to keep it on the road i regularly change the oil and i regularly check all fluids.

oh and can i pull off and trash the metal cover on the exahaust?
 Quoting: Anonymous Coward 79495032


I'd replace the cat before it disintegrates or causes an obstruction which will leave you stranded.
 Quoting: Anonymous Coward 12524540


i already fixed this problem by punching a huge hole before the cat i need to get in there and remove the fancy metal heat sheild that is on the entire exhaust system but its so old and rusted i'll have to cut it off
 Quoting: Anonymous Coward 79495032


You need that heat shield it keeps the heat from the cat/exhaust from affecting the plastic/rubber components in the engine bay. Go to Pick ur part and get another one or try ebay. A new one will break your bank account.
Anonymous Coward
User ID: 84009863
France
08/14/2022 12:19 PM
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Re: Fix it Sunday... Master Mechanic, ask me anything!
2001 Dodge Ram Diesel Cummins

Hard start after sitting, will kill batteries after sitting
overnight it takes so much cranking.

Even when bumping starter to pre-run the lift pump
several times.

Disconnected hose at injector pump, ran lift pump, tons of fuel.

Once started, runs fine.

(I have installed a check valve before and after the fuel
filter, so fuel is not draining back that way.)

No evidence of fuel leak anywhere.

Very frustrating.

Any ideas? Thanks in advance.

:goob5:
 Quoting: Trained Noticer


if no start try a tiny bit of ether if it starts then runs the injectors need servicing because one or more is leaking internally, do them all
sad pony

User ID: 73809084
United States
08/14/2022 12:20 PM
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Re: Fix it Sunday... Master Mechanic, ask me anything!
Ok here is one. Maybe it's easy to answer. I purchased a 2016 Ford F 150 XL (couldn't afford the T) in 2017. It is a Ecoboost system. That means it shuts off when you are in drive and stopped, with brake depressed, like at a red light, for 40 seconds or a minute. The engine turns off but all your systems remain running, like your AC. When your brake begins to come up, your engine turns back on. You can see and feel when it stops and starts as your lights and radio seem to have a tiny break in them. But you would not notice really.
My question: my husband told me to turn this function off (it's a button on the dashboard to deactivate) as he would rather pay more for gas than have to replace a starter or ignition. Sometimes at red lights the truck may cycle thru this 4 or 5 times starting up each time.
Do you think starters and ignitions are made longer lasting for all these extra starts and stops? Does it affect my alternator too?
I do always turn it off as my husband told me too. Does it matter? Will it wear out my starter, alternator, and stuff like that faster?
Rorschach Watchmen

User ID: 83977271
United States
08/14/2022 12:21 PM
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Re: Fix it Sunday... Master Mechanic, ask me anything!
Updating all our old Yaskawa v1000 Variable frequency drives for the the newer compact V500, however you would think the program parameters would be the same but no. Not really a question, more of a complaint.

Love these threads though!
“When you’re dead you’re dead, but you’re not quite so dead if you contribute something”

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GLP