Engine Light came on, then off??
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Joined: Aug 2012
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Engine Light came on, then off??
Hey guys, i have a 2006 Ford F150 FX4 with the 5.4 V8 in it. The truck has around 54,000 miles on it. I never floor the truck or beat on it ever, i drive it very normal. The other day i was going up this big hill(pavement, not offroading) and i floored the gas pedal, and the truck started bucking rear bad and the check engine light came on and started flashing, once the hill leveled out, the engine light went off and i never had a problem again. i tried to get the truck to do it again and there was no signs of it going to. I hooked a scanner to the vehicle and there was no coded stored in the computer. I dont know it just seemed really weird to me. You guys ever heard of strange stuff like this happening on these trucks? Thanks, gary
fxmf4
Joined: Mar 2011
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From: joplin mo
Hey guys, i have a 2006 Ford F150 FX4 with the 5.4 V8 in it. The truck has around 54,000 miles on it. I never floor the truck or beat on it ever, i drive it very normal. The other day i was going up this big hill(pavement, not offroading) and i floored the gas pedal, and the truck started bucking rear bad and the check engine light came on and started flashing, once the hill leveled out, the engine light went off and i never had a problem again. i tried to get the truck to do it again and there was no signs of it going to. I hooked a scanner to the vehicle and there was no coded stored in the computer. I dont know it just seemed really weird to me. You guys ever heard of strange stuff like this happening on these trucks? Thanks, gary
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Joined: Apr 2009
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The truck probably detected a slight misfire. Since it didn't continue it registered as a pending code (hence the on then off light). Clean the MAF, change the plugs, and grease the COP boots is the best way to take care of it. It's about time for you to change the plugs anyways. Run a few rounds of PEA cleaner and your choice of method for the plug removal.