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How to get codes from car who to take it to?

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Old 07-31-2008, 07:29 PM
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02 C320 Sedan
How to get codes from car who to take it to?

Just wondering were to take the car to get these codes and find out whats up with my car. It idles rough and shakes at stop lights some times not all but its very annoying. Some ppl say it could be a MAF some say vacuum leak. I just wanna find out what it is. oh and if anyone knows the ball park price range on the diagnostic. Thanks

Kris
Old 07-31-2008, 07:42 PM
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'17 Jaguar XF
Do you get a malfunction warning like a CEL? If not, there probably isn't an error code stored. How many miles on your car?
Old 07-31-2008, 08:03 PM
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I Got the car at 70k miles the car now has 78k.. Ive never had a check engine light.. I did an oil change and thought it would fix it but no go. I cleaned the air filters but im going to buy new ones soon. Dunno what to do. Its annoying that it only does it sometimes but its starting to do it more.
Old 07-31-2008, 09:19 PM
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white and whiter
rough idle may be spark plugs, dirty fuel injectors, or engine mount. I'd try some of the Chevron fuel injector first or Locus fuel injector cleaner (which from the one I used seems to work the best). If that doesn't help check each and every spark plugs make sure they're all good. If that doesn't help check the engine mount. engine mount will be more expensive to replace because of labor.
Old 07-31-2008, 11:42 PM
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Originally Posted by FrankW
...rough idle may be spark plugs, dirty fuel injectors, or engine mount. ....
Unless these items are going bad, and then correcting themselves, then going bad again I doubt it's any of them. Intermittent problems are hard for anyone to fix. Start by having a mechanic hook it up to the diagnostic machine(s) and see if it shows anything. If it doesn't, then start throwing parts at it. Marginal fuel pumps and cats with loose plates also cause the symptom you're experiencing.
Old 08-01-2008, 03:37 AM
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white and whiter
Originally Posted by mleskovar
Unless these items are going bad, and then correcting themselves, then going bad again I doubt it's any of them. Intermittent problems are hard for anyone to fix. Start by having a mechanic hook it up to the diagnostic machine(s) and see if it shows anything. If it doesn't, then start throwing parts at it. Marginal fuel pumps and cats with loose plates also cause the symptom you're experiencing.
you are right. all those items will probably cause a more consistent rough idle rather than intermittent. I hate intermittent problems as well.
Old 08-01-2008, 04:05 AM
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if your car's throwing out codes..you can go to autozone to download them for you. If you pay the fee, they'll translate the codes and tell you what they stand for.
Old 08-01-2008, 04:26 AM
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I drive a Toyota Hybrid...
Originally Posted by FrankW
rough idle may be spark plugs, dirty fuel injectors, or engine mount. I'd try some of the Chevron fuel injector first or Locus fuel injector cleaner (which from the one I used seems to work the best). If that doesn't help check each and every spark plugs make sure they're all good. If that doesn't help check the engine mount. engine mount will be more expensive to replace because of labor.
thx again, more things to know
Old 08-01-2008, 11:40 AM
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Chevron fuel injector Cleaner has anyone else used this before? And can i pick it up at a gas station? Or autozone?
Old 08-01-2008, 08:30 PM
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Originally Posted by krisv420
Chevron fuel injector Cleaner has anyone else used this before? And can i pick it up at a gas station? Or autozone?
yes...its just a more concentrated version of Techron they put in there gas.
Old 08-01-2008, 10:50 PM
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Does the engine run smoother at higher RPM's?
Old 08-02-2008, 04:21 AM
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Originally Posted by shuor
Does the engine run smoother at higher RPM's?
Car runs great at high RPMS i believe.. First gear is a little odd sometimes.. I have a trip to go on today so i will clean the injectors before i leave and see if that helps

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