1995 Geo Prizm engine shake on acceleration - Toyota Nation Forum : Toyota Car and Truck Forums
7th Generation (1993-1997) Specific discussion of the 7th generation

 
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#1 Old 12-05-2008, 04:42 PM
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1995 Geo Prizm engine shake on acceleration

My car has developed a problem, and I don't know whether to solve it or how. It is a 5 speed with the 1.8. During acceleration you can feel a little shake on throttle tip in, like the engine is lose from the car, or the transmission. Can't explain it any better.

What is the best way to figure out what is wrong, and how could it be fixed?
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#2 Old 12-05-2008, 05:41 PM
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Pop the hood, and watch while someone revs the engine. If the engine is shaking excessively, it's likely worn out motor mounts. Where is the shake? Your wording makes it sound like its in the pedal, but I think you mean the front end/whole car vibrating
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#3 Old 12-05-2008, 07:47 PM
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yep CJRocker is right!
Mine does that but only a little shake so I took it in and they said it was motor mounts and it was gonna cost about 300 to fix them. Ill just buy them and put them in myself.

When you rev the engine make sure you stomp on the gas and dont accelerate slowly
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#4 Old 12-05-2008, 07:50 PM
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roughness on acceleration is also a common symptom for a misfire.
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#5 Old 12-09-2008, 09:14 AM
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It's probably the motor mounts. My wife has the car right now, but I'll look into it tonight. I can rev it from the engine bay, and have, but haven't seen or felt anything when it is out of gear. Thanks for your help so far.
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#6 Old 12-09-2008, 07:02 PM
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Took a look at it again tonight. There is no shake from just revving the engine. It's pretty steady. If you are out, in gear, and rolling down the street and hit the gas to pas, it's like the engine jumps. This only happens in gear, however.
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#7 Old 12-09-2008, 07:15 PM
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take the distributor cap off and check for corrosion, mine was hesitating under acceleration and all the contacts were corroded. i got a new one and problem solved

2001 Solara V6 (5MT)
1997 Corolla (5MT)
1992 Camry (5MT)
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#8 Old 12-09-2008, 09:51 PM
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agreed. All of those are possibilites. I am guessing the motor mounts, and the distributor cap. I hope u get it solved soon man.
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