ZapMan Posted January 23, 2013 Share Posted January 23, 2013 1999 Dodge Ram truck 1500 5.9 Magnum Gas EngineOnce and a while when starting, it wont stay running. Cant even back up to get on road. If you keep foot on gas you can keep it running. Usually a trip around the block with forced foot wiil bring it out of it. It does it a very random times: - cold mornings- warm mornings- warmed and restartedIt does not race up and down, just starts and then dies. But as stated, with constant foot pressure, I can keep it running.Thank You for your Ideas Quote Link to comment Share on other sites More sharing options...
Jeremy airjer W Posted January 23, 2013 Share Posted January 23, 2013 Remove the IAC from the throttle body. Thoroughly clean the passages in the throttle body with car spray. Clean the pointless of the IAC. Inspect the pintle for wear, if any is evident replace it. Quote Link to comment Share on other sites More sharing options...
Jeremy airjer W Posted January 23, 2013 Share Posted January 23, 2013 I should add when it does this you can remove the air tube from the throttle body. Look straight down towards the back of the throttle plate. You will see the air bypass channel and the pintle of the iac in that passage. Use a small screwdriver and gentle push the pintle back towards the body of the IAC. Then try restarting. If if fires up and stays running your on the right track. Fairly common on the older dodges. Quote Link to comment Share on other sites More sharing options...
Scott K Posted January 23, 2013 Share Posted January 23, 2013 Jer is right, most likely a stuck idle air control motor Quote Link to comment Share on other sites More sharing options...
ZapMan Posted January 23, 2013 Author Share Posted January 23, 2013 Thanks for the info and the diagram, I will check it out tonight after work. Quote Link to comment Share on other sites More sharing options...
ZapMan Posted January 23, 2013 Author Share Posted January 23, 2013 Pulled out the valve and cleaned it and the surrounding area. Will see if it happens anytime soon again.Thanks for info. Quote Link to comment Share on other sites More sharing options...
Deep Posted January 23, 2013 Share Posted January 23, 2013 If your battery voltage drops below aprox. 9.6 volt the IAC memory will be cleared in the computer and will not know what position it is at. It takes alittle run time before it will relearn what its position is. Maybe have you battery load tested also. Quote Link to comment Share on other sites More sharing options...
ZapMan Posted January 24, 2013 Author Share Posted January 24, 2013 Put in a new Interstate battery last fall, should be good yet. If problem persists I'll check that.Thanks Quote Link to comment Share on other sites More sharing options...
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