Question about 1995 Buick Park Avenue
Hello, symptons are at around 45 miles per hour there will be a shaking that occurs. Take your foot off the pedal, it stops, hit the accelarator and get past the problem you can get up to 65 miles per hour and it could be fine. It may start shaking right there. Once again take your foot off the accelator, stops immediately. It seems to have been happening the most when the rpm's are right around 1500. Get it to 2500 to 3000 rpms and it is fine. Get to crusing speed where the rpms are going to back down to 1500 and it will start shaking again. I had a transmission guy say that it was in the torque convertor. We had wrecked a Le Sabre about a year ago so we had taken out the engine and tranny. Switched them and it didn't improve at all. Zero. We are in the process of changing out the struts and such. I changed spark plugs and wires and fuel filter. No improvement. Any ideas.
Maybe driveshaft ujoints or axles. maybe harmonic balancer. If it was these It would progressively get worse. Your really going to need someone hands on to figure this out. Once all engine and drivetrains components are eliminated as being the problem, then your dealing with torq converter shutter issues. It wont be the struts if the car is sitting level. It wont be the shocks is the car seems firm when hitting bumps. It could be wheel ball joints if the tires are wearing abnormal.
Posted on May 19, 2010
Hi! Regarding this matter, Have you had a wheel balance lately? you may need to get your wheel balance checked for it may be the one causing you the shaking. If wheels are fine, I suspect a faulty MAF (mass air flow) sensor, it has big contribution on engine performance specially on the idling. It can cause a shaking too if its faulty, its like that the engine is gonna die or something. Struts and tranny will be out of the issue so you can skip that. Hope this helps and have a good one!
Posted on May 13, 2010
The first part to address would be the torque converter, but this had already been checked and replaced.
If the shaking is caused by the auto tranny shifting in gear too late, check the throttle position sensor. This is mounted on the throttle body and it is used by the transmission control module to determine when to shift in gear.
Check also if there is misfire. In that case the shaking will be caused by a different problem, and there will be engine codes stored in the ECU.
Posted on May 13, 2010
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Posted on Jan 02, 2017
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