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Old 09-21-2005, 10:21 PM   #1
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Misfire when I take my foot off the gas.

If you're reading this, thanks, I decided not do a "Wha bout this?" subject line.

The problem just surfaced a few days ago, when I take my foot off the gas, I feel a noticable "thud". I asked my ASC Certified Master Mechanic to take a look and come for a ride and he said it did NOT feel like an engine mount.

Now that I've suffered with it for a few days, it is most apparent when I go from a throttle-on to a throttle-off position. Usually our SVT's revs hang for a little so taking my foot off the gas doesn't really do anything, mine drops it's revs immediately and I can really feel the engine compression.

I've come to the conclusion that my engine is misfiring or something, but I'm sure the dealer would tell me "stomp the clutch before you take pressure off the gas" (change your driving style to accomodate the problem)

Performance is still good, maybe not as perky as it was before the problem arose.

I reset my ECU (30 minutes with the negative terminal off the battery) but that had no effect.

Anyone got any ideas.

Phew!


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Old 09-21-2005, 10:34 PM   #2
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That doesnt sound like a misfire. That sounds like what mine was doing when I found the pass and torque mount were worn out.
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Old 09-21-2005, 11:14 PM   #3
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Wayne!

Cool! thanks for helping out, I thought it could have been the "pass and torque mount" . . . Uh, what is the "pass and torque mount"?

You have a PM Wayne.
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Old 09-21-2005, 11:24 PM   #4
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Passenger mount and torque mount. I had both stocks pretty worn out when I bought it, and it was making the same sort of "clunk".
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Old 09-22-2005, 11:04 AM   #5
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gukin;
Torque Mount = Rear Engine Mount.
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Old 09-22-2005, 11:06 AM   #6
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I agree on the rear engine mount. A misfire would throw a trouble code.
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Old 09-22-2005, 09:43 PM   #7
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Thanks everyone for the response, Wayne suggested I go out and see how much my engine moves when I leave it in gear but move the car, the engine shifts more than an inch when I rock it back and forth in 1'st . I think my rear engine mount is dumpster food.

Next question.

Should I bother with trying to fix it under warranty or should I go straight to aftermarket and have my brother-in-law do the work?

The second way I wouldn't have to restore the ghastly stock tune.

If I go aftermarket, what's the best all-around mount, I don't race, or auto-cross so I don't want one that will transmit too much vibration into the car. Then again, the next time the stocker dies, I'll have to pay to replace it. Bleh.
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Old 09-22-2005, 09:44 PM   #8
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Quote:
Originally posted by gukin
Thanks everyone for the response, Wayne suggested I go out and see how much my engine moves when I leave it in gear but move the car, the engine shifts more than an inch when I rock it back and forth in 1'st . I think my rear engine mount is dumpster food.

Next question.

Should I bother with trying to fix it under warranty or should I go straight to aftermarket and have my brother-in-law do the work?

The second way I wouldn't have to restore the ghastly stock tune.

If I go aftermarket, what's the best all-around mount, I don't race, or auto-cross so I don't want one that will transmit too much vibration into the car. Then again, the next time the stocker dies, I'll have to pay to replace it. Bleh.
The VF mount is the only way to go. Shoot me a pm with your zip code, and I will get you a price shipped.
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