Question about Saturn L300

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The car keeps jumping gears sometimes and air gets in the pistons. service engine light only comes on randomly. i went to autozone for the code scanning and nothing showed up twice. took it to mechanic they said nothing wrong and it never messed up for them as soon as i left it did it to me it only happens when i have to stop and start a lot or accelerate too fast. the fuel pump is new and the filter is about a year old. a year or two ago i messed it up and they had to replace all of it and it has an entire new engine as of a few months ago and they checked alternator and battery. it was all fine. the car blew up because it blew a rod threw the engine block. i don't know if its the same thing again.

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Auto zone can only help you when the check engine light is "on" SUGGEST THAT YOU HAVE IT CODE READ AT AUTO ZONE THE NEXT TIME THE LIGHTS ON,WHEN IT DOES COME ON,LEAVE IT RUNNING THEN when you have someone with you,leave the car running,go inside auto zone and get them to come out and code read it while the lights on.the only way they can read it is if the check engine light is on. i understand that you have a new motor, you may have a bad idle control sensor. that jumps out at me. the silver canister on top of your engine that has only 2 screws holding it to the engine and has an electrical plug in. does the engine die after you start it sometimes? when you're at a light does it not want to take fuel when you press on the gas pedal? does the engine die sometimes for no apparent reason when it"s setting still? if any of these signs are correct,then a bad idle control sensor is suspect.if not that,then you may have a clogging or clogged fuel injector.if you suspect that,then i suggest adding lucas fuel injector cleaner to your gas tank. this stuff works great for unclogging fuel injectors.you can find it for around $5.00 at auto zone,just add it to your fuel tank.run the engine and you will see a difference after the 1st 15 miles. no more missing or sputtering at stop lights or stop signs. thank you for choosing fixya.com

Posted on Mar 24, 2011

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