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From: Ashton Crusher on 2 Apr 2010 03:12
On 20 Mar 2010 09:11:22 -0400, kludge(a)panix.com (Scott Dorsey) wrote:

>Ashton Crusher <demi(a)moore.net> wrote:
>>Sometimes Runs rough when first started. Not just first start of the
>>day, but even when warmed up and then shut down for 15 minutes it will
>>often run rough initially like one cylinder is missing.
>>
>>Roughness usually goes away after it's warmed up but lately it's
>>started to have a bucking/missing/popping under light acceleration.
>>Giving it more gas usually smooth's it out. It will run on up to
>>redline and shift into the next gear and has no problem running up to
>>90 mph. So unlike what I think of as the typical 'worn out plug"
>>misfire that shows up at high rpm and high load, this show up at
>>medium rpm light to medium load.
>
>Check the fuel pressure regulator.
>--scott


It's keeping a steady 35 psi.
From: Ulysses on 3 Apr 2010 12:44

"CWLee" <cdubyalee(a)post.harvard.edu> wrote in message
news:_ImdnfwCOb893ijWnZ2dnUVZ_ridnZ2d(a)earthlink.com...
>
>
> "Ulysses" <therealulysses(a)yahoo.com> wrote
>
>> Just curious, but did you have intake manifold gasket leaks and NO
>> coolant loss or white smoke at startup? I'm having trouble imagining a
>> manifold gasket leak without coolant going somewhere, either inside the
>> engine or outside. Unless it was ONLY the upper gasket that was leaking.
>> Seems kinda unlikely.
>
> No coolant loss noticed, no white smoke at startup. I'm not defending
> the diagnosis or what was done, but this last fix seems to be working,
> with a couple of thousand miles on the car since the repair. Over the
> previous 2 years and 10s of thousands of miles the problem always
> resurfaced (after each of the several other attempts to fix it) the first
> time I started the car with temps below 50.
>
> Previous attempts to fix the problem included replacing plugs, replacing
> wiring to the plugs, replacing an/the oxygen sensor, replacing the fuel
> pump relay, and a couple of other things I don't remember.
>
> Best regards to all.

Thanks. I'll keep this in mind if my '97 starts doing what yours was doing.
As for the other fixes most of them sound like things that probably need to
be done anyway so it doesn't sound like you wasted much money on them.


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