99 Subaru Legacy Wagon... loss of power and acceleration

My mechanic checked that as well, and he said it was fine. He is really stumped...

hmmm - seems like it could be low fuel pressure/weak fuel pump or fuel press. regultator. I dunno. try posting this on the 'new generation' forum at

Carl

i'm a consumer, and not a mechanic. but i find your use of the word "replaced" rather than "inspected" a little worrisome. some of these parts are expensive, and can probably be tested without being replaced. also, it seems to me that six months to diagnose and fix a problem is way too long.

your mechanic may be honest, but it may be time to get a second opinion, preferably from a "subaru specialist", if you can find one in your area.

otherwise, call it quits after 246,000 miles and get another car - it seems to me like you've gotten your money's worth out of this one.

....... tom kle> I have a 1999 subaru wagon with 246K miles. The car has been a dream,

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Valve or ignition timing off 1 or more tooth? If it jumped one tooth it will run like that. Poor power and hot. It might start OK and even idle like that

"i'm a consumer, and not a mechanic. but i find your use of the word "replaced" rather than "inspected" a little worrisome. some of these

parts are expensive, and can probably be tested without being replaced. also, it seems to me that six months to diagnose and fix a problem is way too long. "

Sorry... simple matter of semantics. Everything that was replaced on the car had a "below optimum" reading. Much of the work was stuff that needed to be done... ie timing belt, tune up, oxygen sensor. The only other thing that was replaced was the ignition coil which was not putting out as many volts as it was supposed to. So it to was bad. The other items that we checked, we swapped out with another Subaru that was known to work. My mom has a 1996 Outback and many of the parts are interchangeable. So we have been removing sensors and trying through trial and error to find the problem.

The fuel pressure regulator sounds promissing. That may be the next test. It has to be one of these numerous sensors on the car.

"otherwise, call it quits after 246,000 miles and get another car - it seems to me like you've gotten your money's worth out of this one. "

As far as getting rid of the car...I got another 100K + miles left in this baby! I am confident she will go the distance. Thanks for the pointers... it is very perplexing.

My 95 wagon a few years ago had the exact same problem. Replacing the air flow meter solved it.

It's probably time to try a Subaru dealer. Indie mechanics can be good, but dealer mechanics have probably seen this one before, can diagnosis it, and give you a repair estimate. If you ultimately decide to DIY, the dealer will probably charge you for diagnosing the problem, but that cost will pale in comparison to all the work you've already done chasing the problem.