WHY DOES IT IDLE UP BUT WILL NOT IDLE DOWN.

2005 Dodge Ram

Tiny

tgann

September, 23, 2011 AT 1:17 AM

05 dodge 3500 5.9 diesel idle up but won't idle down. The only way it will idle down is to turn off engine and restart. Installed new injectors but didn't help.

4 Answers

Tiny

KHLow2008

September, 23, 2011 AT 12:54 PM

Have you tried to check for trouble codes?

Tiny

tgann

September, 24, 2011 AT 1:29 AM

I have checked it does not show any codes

Tiny

tgann

September, 24, 2011 AT 1:30 AM

I have checked it does not show any trouble codes

Tiny

KHLow2008

September, 24, 2011 AT 11:54 AM

Since turning engine off and restarting changes the idling speed, it should be a control problem and without any trouble codes, you would need to plug in a scan tool to monitor the various sensors and check if they are working within specifications.

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