86 6.9 running away
Thread Starter
|
Tuned
Joined: Nov 2002
Posts: 348
Likes: 0
From: Benson, AZ
86 6.9 running away
Hello
I have another weird problem my truck seems to be running away when I press the clutch or take it out of gear. i checked and it is doing it at normal operating temp. (190) when i unplug the rear connector on the injector pump the idle drops back to normal after a few seconds. I also unpluged the cold temp selonoid and that also helps. any ideas what is causing my problems?
thanks for the help
Scott
I have another weird problem my truck seems to be running away when I press the clutch or take it out of gear. i checked and it is doing it at normal operating temp. (190) when i unplug the rear connector on the injector pump the idle drops back to normal after a few seconds. I also unpluged the cold temp selonoid and that also helps. any ideas what is causing my problems?
thanks for the help
Scott
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 15
From: Nutter Fort, WV
So when it is warmed up to normal temp, use a test light to see if you have voltage to the timing advance (back wire right side looking from front) or to the fast idle solenoid.
If you do then you need a new temp sensor down under the alternator by the thermostat.
If you do not, then you need to take it to a diesel injection shop for some pump work.
If you do then you need a new temp sensor down under the alternator by the thermostat.
If you do not, then you need to take it to a diesel injection shop for some pump work.
Senior User
Joined: Jul 2003
Posts: 121
Likes: 0
Is it running away or is it just revving up to a higher rpm and staying there?running away is when the engine keeps revving up and sucks the oil out of the crankcase to keep running and the only way to stop it is to stop the air supply. My teacher in school saw a tank run away and somone tryed stoping the air by butting a 4 or 5'' manual over the intake but it just sucked a hole through the center of the manual.
Thread Starter
|
Tuned
Joined: Nov 2002
Posts: 348
Likes: 0
From: Benson, AZ
I pulled the plug on the rear connector and it is still revving high when i tap on the pump housing near the connector the RPMs drop down to normal. so i am looking at rebuilding the pump? there is also a little ware on the accelerater rod but i know that is not causing the problem.
Thanks again
Scott
Thanks again
Scott
