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carmstrongls1
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My car did the same exact thing. Do a compression leakdown test. Most likely you have a loss in one or more cylinders. It will be very specific when you have it tested. I had a 15% loss in cylinder #1 and sorry to say... It requires alot of work. Not too uncommon in cars that are low mileage either. Since these cars were new fuels have come a long way and carbon build up is bound to happen. If the leakdown test shows lost compression by 5% or more its time to rebuild the cylinder heads. You can try to chemically remove the build up but due to the age it is unlikely. I promise though... I had the exact same symptoms.
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Ouch. These manuals are hard to come by and I have seen them on Ebay in recent months. Sets go for somewhere in the neighborhood of $700. Try LA dismantler. They can probably help you even though they are way overpriced usually.