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Old 09-20-2010, 06:37 AM
bigboyuk bigboyuk is offline
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Default 04 1500 quadcab ram wont rev over 4000 RPM

Hi all this is my 1st post based in the uk with an 04 1500 quadcab ram 40k on the clock, stock engine.

I just changed the lamba o2 sensors and re-set the computer the truck runs fine. but when in park wont rev beyond 4000 rpm its like it has hit a limiter I think it used to rev freely before. After reving the engine dies Has anyone had this problem?? any help very welcome. cheers Andrew
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Old 09-20-2010, 09:12 AM
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My 04 has a stock rev limiter of 3600. If you buy a tuner for it, that can be adjusted.
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Old 09-20-2010, 09:46 AM
DaddioDX DaddioDX is offline
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Yep, the stock rev limiter is set for 4000 in nuetral/park. But it shouldn't die when returning to idle. Did you pull any codes recently? If your not sure, cycle the key 3 times from off to ON to off stopping at On the 3rd time, and any codes will be displayed in the odometer display. If you get no codes... It could just be time for an injector/Throtle body cleaning and some sparkplugs, or it could be a slow/dirty IAC valve.
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