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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

bouncing rpms

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Old Jul 15, 2012 | 01:19 AM
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octaneforce
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Laughing Gas
Joined: Mar 2009
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From: long island
bouncing rpms

today while i was driving my truck it started to act really weird at higher rpms. when i would try to accelerate the truck would act like it was hitting a rev limiter and the tach would shoot back and forth erratically. it sounded like when you hear a ricer bounce off his rev limiter. BA BA BA BA BA. you get the picture. it would do this at oh say, i dont know. maybe 3100 rpms. i couldnt tell because the tach is not accurate. while it was doing this the volt meter dropped all the way towards the 8 and my lights were not as bright. the truck kept running fine so i just kept driving. got to my destination about 30 minutes later and turned her off for like an hour. when i got back the problem was gone and my volt meter was back in the middle. ill have to run the codes tomorrow but has anybody else experienced this?
 
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