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Old 08 Jun 2013, 05:46 pm
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Default what do i do about my acura integra (high miliage) engine run smoother faster etc?

well i bought a automatic acura integra 95 sedan special edition and has 300 000 plus miles the car runs but just doesn't seem to be at its best performance,,,i don't know really anything about cars so what can i do to make this car run smoother btw everything in this car is out of date.and i mean all of it seems really old so what other things should i change to make my car perform smoother faster long lasting,,i've changed the transmission on the car it was slipping but even till now the idle goes up and down not much of a problem but if you have any tips on what it could be let me know...i did a engine & transmission flush added a fuel filter didn't know i was suppose to add a oil filter so doing that soon also getting a new muffler and exhaust and also a valve cover gasket because its leaking oil if there is anything else anyone might know that i should replace out of a old car please help me thank you if you need any details on the car let me know. any advice would help.
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Old 08 Jun 2013, 06:01 pm
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put seafoam in gas tank, engine, and intake valve
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Old 08 Jun 2013, 06:20 pm
SHY SHY is offline
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Replace all the gaskets, do a full tune up & replace all the belts & hoses.
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Old 08 Jun 2013, 06:31 pm
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I wouldn't suggest running seafoam or any other "engine cleaners" unless you know the absolute condition of the motor. Doesn't sound like the previous owner(s) took very good car of it - It's possible the built-up carbon is helping keep certain areas properly sealed (piston rings). Automatic transmissions on these cars were pretty sluggish to begin with so, let's see what we can improve...































First thing that rings a bell is the surging idle you mentioned which could be caused by a dirty fast idle valve (under the throttle body) or air idle control valve (behind the intake manifold). Take those off and clean the inside with brake/carb cleaner until it runs clear then set out to dry. Vacuum leaks could also cause surging idles and they can often be found by spraying brake cleaner around various areas of the engine bay listening to idle changes.































Afar from that, I would check the compression on the motor - it should read fairly consistent across. If its not, then the motor is not healthy and you wont fix the problem until the internal issue is resolved. Otherwise, if the engine is healthy - continue with the normal maintenance: oil and filter, spark plugs, spark wires, transmission flush, coolant flush, air filter, valve lash and fuel filter. If that still doesn't help, check to make sure the cat/exhaust isn't clogged and the throttle cable isn't too loose.































That should pretty much do it. If you need anymore than that, probably time for a new car or engine. Good luck.
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Old 08 Jun 2013, 06:48 pm
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Ditto to exactly what asianzt said.
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