RPM issues, they bounce
#1
03-19-2012, 01:25 PM
Join Date: Sep 2009
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RPM issues, they bounce
So my 2000 5.9L Durango will bounce rpms while driving or idling. Not all the time and not just when it is cold. I have replaced the plugs, wires, cap, and rotor, and even ran a can of sea foam through the tank. It has gotten a lot better but it still will bounce the rpms every so often. There is no smell of exhaust when I gun it si I don't think the cat converter is the problem. Also no engine light or fault codes. I just like keeping the truck running in top shape so I would like to try and fix it. Also I haven't found any signs of a vacuum leak, no shops were able to either.
Any ideas and suggestions?
#3
03-20-2012, 02:22 PM
#4
03-20-2012, 05:48 PM
Record Breaker
Like shrp said, replace the TPS (Throttle Position Sensor), it is located on the driver side of your throttle body, it is black in color and has two T25 screws holding it on. Replace this sensor and reset your PCM (see instructions below) and call it a day.
Remove the negative terminal of your battery (10mm wrench).
Turn your ignition key to START and hold it there for about 15 seconds.
Turn your ignition key to OFF and remove it.
Connect the negative terminal of your battery.
Start but do not hit the throttle. Idle for about 10/15 seconds then turn off.
Restart the truck and drive as usual. It will take at least 12 starts and 48 miles to fully retune the computer. Hard Codes leave a shaddow for 40 full cold starts.
Turn your ignition key to START and hold it there for about 15 seconds.
Turn your ignition key to OFF and remove it.
Connect the negative terminal of your battery.
Start but do not hit the throttle. Idle for about 10/15 seconds then turn off.
Restart the truck and drive as usual. It will take at least 12 starts and 48 miles to fully retune the computer. Hard Codes leave a shaddow for 40 full cold starts.