Forum Replies Created
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Another clue. The vibration comes on like shaking and then it idles fine. And then it comes on, starts out like barely there then quickly builds, then it’s fine, say every 10-15 seconds in a cycle.
Ok, I don;’t think it’s the accessories. I had a buddy hold the car in drive with the brake on. The engine shakes side to side like an Harley Evo. When the AC is on, it’s worse, but it’s really testing the flex hose to the airbox when the ac is on.
Since it’s rocking side to side, it’s probably engine mounts right? Probably one of the side mounts?
Quoted From college man:
if the vibration is only there when the compressor is engaged.
Then I would suggest that something in the compressor is going
and causing the out of balance vibration. check that the compressor
mounting is tight or broken brackets.Ok, will do. Someone on another forum said it might be the bearings in the compressor too. I’ll check the brackets first and report back.
There is definitely some vibration at idle with the AC off and with the car in drive, not as much as with the AC on and not all the time. If the car is in park, I don’t feel it.
Quoted From dreamer2355:
Is the CEL on?
I would also be looking at your motor mounts as a starter IF you do indeed have vibration issues without the A/C compressor engaged.
Keep us posted.
No codes at all. The vibration mostly just shows up at lights setting in drive. It comes on and then stops and then comes on again. Much worse with the ac on.
Quoted From dreamer2355: _x000D_
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Did you try sweep testing the TPS with a DVOM?_x000D_
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At idle, you should have around 0.9v and WOT around 4.9._x000D_
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Don’t have a DVOM. Next good sale, I’m buying one, it’s getting to be a problem not having onQuoted From dreamer2355: _x000D_
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A cheap model that reads under 20vdc will be fine C8-)_x000D_
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Keep us posted!_x000D_
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I actually do have a volt meter, I thought you meant a code reader. What’s the procedure? BTW, throttle feels good now. I th[quote]Quoted From spelunkerd: _x000D_
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I’m not sure why you want to do that. It almost never shows 0% when foot is off the gas. One trick is to remove the floor mat, which might give you a few % on the high side. It seems unlikely you will get much perQuoted From pcmdjason: _x000D_
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And you know it’s a TPS or you’re just seeing if it is?_x000D_
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Just checking it since I never adjusted it. Figured might as well. _x000D_
_x000D_Quoted From clearanceman: _x000D_
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Just checking it since I never adjusted it. Figured might as well. _x000D_
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In the meantime, I just put the TPS in the middle of it’s range of adjustment and I’ll go from there. It was at one end of i[quote]Quoted From EricTheCarGuy:_x000D_
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I can’t stress enough how important it is to lubricate slide pins with silicone paste only.[quote]Quoted From EricTheCarGuy: _x000D_
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Lets put a pin in the ‘restricted cat’ theory for now and focus on catalytic converter efficiency which is what the code is for.[quote]Quoted From college man:_x000D_
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Your testing will not work with a mighty vac brake bleeding tool. this_x000D_
tool creates vac or pressure depending on the model. You will need_x000D_
a manifold vac gauge. heres a video to help explain manifold vacuum_x000D_
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_x000D_Quoted From college man:_x000D_
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if your gauge reading is correct. the higher the rpm goes the more the_x000D_
vacuum should fall. not go up. up means restriction._x000D_
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I’ve been reading on this and everything I’ve read so far says vacuum will dr[quote]Quoted From college man:_x000D_
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did you watch the video I posted. well let me approach this another way._x000D_
we breath air in and out. if you take in air and blow it out with no restriction_x000D_
thats good. when we take air in and you put your hand ove