Calling all GLP mechanics--gmt400 (Diesel_Tech where are you?) | |
Just Passing Through.....
(OP) *MOLON LABE* User ID: 70028361 United States 02/02/2023 04:47 AM Report Abusive Post Report Copyright Violation | I actually switched to quieter tires. It had BFGoodrich Mud Terrains. They were a quite a noisy tire. I have the All-terrain KO's now the 33×12.50s. I wish it was the tires. Hewring alot more noises now that idon't have mud tires rumbling at any speed above 30. "She isn't real.....I can't make her real" "Somewhere between the sacred silence and sleep...Disorder, Disorder, Disorder" "The World is a business Mr Beale..." "You depend on our protection yet you feed us lies from the tablecloth......" ENFJ |
Just Passing Through.....
(OP) *MOLON LABE* User ID: 70028361 United States 02/02/2023 04:49 AM Report Abusive Post Report Copyright Violation | Its a 2 door Tahoe. No center support bearing. My trucks not long enough for that. But its not the size that counts, amirite? "She isn't real.....I can't make her real" "Somewhere between the sacred silence and sleep...Disorder, Disorder, Disorder" "The World is a business Mr Beale..." "You depend on our protection yet you feed us lies from the tablecloth......" ENFJ |
Just Passing Through.....
(OP) *MOLON LABE* User ID: 70028361 United States 02/02/2023 04:51 AM Report Abusive Post Report Copyright Violation | since it hasnt been mentioned, check your motor/trans mounts too. ive had cars that had odd vibrations stop after changing the motor mounts.. the whole drive train can be out of alignment due to bad motor/trans mounts. Quoting: Anonymous Coward 80531705 Not a bad idea at all. Thank you. "She isn't real.....I can't make her real" "Somewhere between the sacred silence and sleep...Disorder, Disorder, Disorder" "The World is a business Mr Beale..." "You depend on our protection yet you feed us lies from the tablecloth......" ENFJ |
Just Passing Through.....
(OP) *MOLON LABE* User ID: 70028361 United States 02/02/2023 04:53 AM Report Abusive Post Report Copyright Violation | So, we get our health advice from GLP why not health advice of sorts for our vehicles. Quoting: Just Passing Through..... My old buddy Diesel_Tech who I normally asked has either changed his name or is no longer here. Ok, so here are the bullet points 1997 Tahoe Z71 2 door Obviously has 4wd and all the offroad goodies offered by GM. Now here is my problem. Whine/hum that starts around 20 and stays constant under load. The hum/whine disappears when I let off the gas. I feel a slight vibration in the gas pedal as well and it does seem to change pitch when I slalom the truck side to side at speed. Now, I know most will say its my rear end pinion or carrier bearings. I thought this too and it still very well may be but I emptied the fluid and no shavings or glitter indicating a rear end about to grenade. I changed the rear axle bearings and seals to rule them out and no avail. Basically my symptoms are a blend of wheel bearing and rear end. How the f--- do I pinpoint what it is? I can figure out how to repair just about anything on this truck but when symptoms match 2 or 3 possible problems....that's when things get a little iffy for me. I really hope its a bearing and I'm not stuck rebuilding, shimming, and correcting backlash on a new rear end. The rear end is RPO code GT4 which is the 30 spline 10-bolt with 3.73 gears and posi/locker obtain a cheap go pro clone with a strong mount and target the suspect areas successively with the mic opening not the lens aperture so much then drive until you deduce it This is actually sound advice(no pun intended) 40 bux and a roll of duct tape sure beat having your friend hang out the window with a screwdriver in his ear. best idea given in this thread, probably pinpoint it in an hour or two It was a fantastic idea and that is a hail mary. I juat ordered a wireless automotive microphone kit that 4 little mics to mount under the car and a littoe black box to show which one is being set off the loudest. "She isn't real.....I can't make her real" "Somewhere between the sacred silence and sleep...Disorder, Disorder, Disorder" "The World is a business Mr Beale..." "You depend on our protection yet you feed us lies from the tablecloth......" ENFJ |
JustmeTX
User ID: 84369183 United States 02/02/2023 11:55 AM Report Abusive Post Report Copyright Violation | ... Quoting: Anonymous Coward 84224684 obtain a cheap go pro clone with a strong mount and target the suspect areas successively with the mic opening not the lens aperture so much then drive until you deduce it This is actually sound advice(no pun intended) 40 bux and a roll of duct tape sure beat having your friend hang out the window with a screwdriver in his ear. best idea given in this thread, probably pinpoint it in an hour or two It was a fantastic idea and that is a hail mary. I juat ordered a wireless automotive microphone kit that 4 little mics to mount under the car and a littoe black box to show which one is being set off the loudest. Cool! DO you have a link to the product? Justme |
Anonymous Coward User ID: 14716931 United States 02/02/2023 12:29 PM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 84592513 United States 02/03/2023 06:10 PM Report Abusive Post Report Copyright Violation | You're likely to find the left side carrier bearing has pitted and worn. They like to spin on the differential case. When this happens your backlash increases and puts the ring and pinion out of alignment resulting in the typical howl. This noise can be influenced by swaying the truck side to side as your axle shafts bear the side loads directly on the carrier cross pin. So when you make left turns, the right axle is loading the left carrier bearing, and vise versa. Pinion bearings can also make noise. The front one will start growling at parking lot speeds on up to road speed, and the rear one will have a deeper growl, usually more pronounced on acceleration and will all but disappear on coast. Good buy on the chassis ears. You will find them very handy. |
Micha el User ID: 81349477 United States 02/03/2023 06:18 PM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 84660494 United States 02/03/2023 07:01 PM Report Abusive Post Report Copyright Violation | So, we get our health advice from GLP why not health advice of sorts for our vehicles. Quoting: Just Passing Through..... My old buddy Diesel_Tech who I normally asked has either changed his name or is no longer here. Ok, so here are the bullet points 1997 Tahoe Z71 2 door Obviously has 4wd and all the offroad goodies offered by GM. Now here is my problem. Whine/hum that starts around 20 and stays constant under load. The hum/whine disappears when I let off the gas. I feel a slight vibration in the gas pedal as well and it does seem to change pitch when I slalom the truck side to side at speed. Now, I know most will say its my rear end pinion or carrier bearings. I thought this too and it still very well may be but I emptied the fluid and no shavings or glitter indicating a rear end about to grenade. I changed the rear axle bearings and seals to rule them out and no avail. Basically my symptoms are a blend of wheel bearing and rear end. How the f--- do I pinpoint what it is? I can figure out how to repair just about anything on this truck but when symptoms match 2 or 3 possible problems....that's when things get a little iffy for me. I really hope its a bearing and I'm not stuck rebuilding, shimming, and correcting backlash on a new rear end. The rear end is RPO code GT4 which is the 30 spline 10-bolt with 3.73 gears and posi/locker |
Anonymous Coward User ID: 83991393 Algeria 02/03/2023 07:14 PM Report Abusive Post Report Copyright Violation | we all know anyone name Diesel tech is a known pedo loser Quoting: Anonymous Coward 85183806 fuckin bitch Multiple Vee Pee En ID's just so you can keep calling Dieseltech a pedo loser. Can you show us on the doll where Dieseltech hurt you so badly? Stop being such a little BITCH! Dieseltech is a gay pedo loser. He's the daddy of the dumb blonde bimbo Blonde Goddess. He loves fucking her and his other dumb blonde bimbo daughters every night. It wouldn't surprise one bit if DieselTech is Blonde Bimbos dad. They're both retarded as hell |