hemi loping/ rough idle
#1
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So for the past few months my truck hasn't been running too well. Its a 2005 5.7 hemi and it would constantly stall when idling and would bog down between 20-40 mph. It also seemed like it had lost all its power. So i have been reading some previous posts on here to try and fix the problem, so far I have: cleaned the throttle body, replaced the EGR valve, replaced the plugs, replaced spark plug wires. The EGR replacement seemed to give my truck its power back, but it still has a hard time idling when coming to a stop. It idles from anywhere around 400-800. Any idea on what else to do? without CEL's I am stumped...
Any ideas would be awesome
thanks
Any ideas would be awesome
thanks
#2
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It may be your throttle position sensor or try resetting the computer. take + battery cable off and touch it to the negative. Turn on your lights. then reconnect after about 10 seconds. You will have to reset your radio stations. There is another way by taking out your pcm fuse and cycling the ignition key a few times until you hear a chime but i'm not exactly sure how to do it. maybe someone will chime in on better instructions. hope this helps
#5
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Don't forget to hop around on your right foot while holding your left ear in your right hand. Meanwhile, pull the PCM fuse, get in the truck, close the door, buckle up and turn the key to "run". Wait for all the chimes, bells and lights to subside. Turn the key to off, reconnect the fuse and start 'er up. Give the computer some time to relearn your "style".
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#9
#10
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I also had the same effects last year. Was my EGR also. Dealership told me if you dont replace the sparkplugs after 50, 000 miles you could dump unburnt fuel leading to a faulty EGR if you have a lead foot.