it seems to be in the area the tranny mounts to the motor possibly the torque convertor?? the motor runs great it is a 4.3 v 6 automatic trans. i am sure the vibarating is not in the motor. the vibrating comes on stronger with more rpm in gear or nuetral. sometimes it is hardly noticeable and sometimes it seems the truck is going to shake apart.
2006-12-28 13:14:30 · 4 answers · asked by packerfan77 1 in Cars & Transportation ➔ Maintenance & Repairs
it seems to be in the area the tranny mounts to the motor possibly the torque convertor?? the motor runs great it is a 4.3 v 6 automatic trans. i am sure the vibarating is not in the motor. the vibrating comes on stronger with more rpm in gear or nuetral. sometimes it is hardly noticeable and sometimes it seems the truck is going to shake apart. somebody that has dealt with this problem or really knows about my problem please let me know. i do not think it is the fan cluthc it doesnt need a tune up. its not the harmonic balancer. i guess i am thinking its the torque convertor if someone who knows trannys wcould confirm this for me it would be helpful
2006-12-28 13:25:04 · update #1
check the fan clutch
2006-12-28 13:17:59 · answer #1 · answered by Kristine H 2 · 0⤊ 0⤋
Vibrations are hard to isolate because they transmit through the whole running gear. I have been completely sure my trans was bad and it ended up being the differential. If this vibration occurs when the vehicle is stopped and in park/neutral then the only thing it can be is engine related since the transmission and universal joints and differentials are not moving. The only components that control balance in the engine are the harmonic balancer in the front of the engine (which can fail) and the flex plate/torque converter. Usually if there is a problem (not always) with the flex plate or flywheel it is accompanied by a rattle at some rpm or another. If this is not present and the engine is not missing it might be worth looking at the engine mounts. Engine mounts are made of rubber to dampen what you feel of the engine in the cab, if they are collapsed you will feel more of the shaking they are designed to reduce. Good luck
2006-12-28 21:26:28 · answer #2 · answered by Anonymous · 0⤊ 0⤋
This is a tough one!! A thorough inspection of the truck when on a hoist is required. A lot of these trucks simply have got stuck in the mud and have a bunch of it stuck to different assemblies which ground to the body which induces a severe vibration. If this is the case, dig out the chunks and wash off the rest. If that's not it, move on to all the different rubber motor and transmission mounts. These should move but not so much as to cause anything to touch, judgement here is key. Loose or missing bolts in all these assemblies could cause this, even on the torque convertor or the bell housing. By process of elimination, check through the exhaust system for any hangers bent, damaged, of loose as well. Usually a vibration that appears out of nowhere is caused by some event, be it an accident, hitting a curb, hitting an animal, or even driving the hell out of your truck. Like I said, inspect under the truck and try to eliminate things before buying things and replacing.
2006-12-28 23:10:15 · answer #3 · answered by Deano 7 · 0⤊ 0⤋
that is an bottomless question. start with the easy stuff. check your torque converter to flexplate bolts. they are accessed through a cover that bolts to the engine and transmission. jack one wheel up and put it in neutral. spin the tranny with a screwdriver on the ring gear and check each bolt. you may even find one of the bolts laying in the bottom of the access cover. if all bolts are tight and in place move on to the driveline. check ujoints, and bolts. intermittent shaking sounds like a torque convertor. should not have anything to do with the trans if it does it in neutral. how are you sure it is not in the motor?
2006-12-28 21:22:27 · answer #4 · answered by paintmetalwood 2 · 0⤊ 0⤋