CEL on / off
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Elder User
Joined: May 2011
Posts: 556
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From: Elyria, Ohio
CEL on / off
My CEL will pop on and the truck will start to slow down and there is a great loss for power for only about 30 40 secs then the CEL will turn off and then the truck will regain power. Its only happend twice when i was going about 50 to 60 mph.
Its only a once in a while thing. but it worries me, What could it be to cause the CEL light to pop on and then shut off? What should i check all to insure that it doesnt happen.
Will any codes comeon if the CEL is off?
Its only a once in a while thing. but it worries me, What could it be to cause the CEL light to pop on and then shut off? What should i check all to insure that it doesnt happen.
Will any codes comeon if the CEL is off?
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Elder User
Joined: May 2011
Posts: 556
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From: Elyria, Ohio
Well, I went to advance to get codes read. No codes becasue the CEL poped on and off. Took it to my buddys who has a nice snapon scaner, was throwing every code for every part. Went back to advance had them check the alternator, Ended up being a bad alternatior.
So its running good so far.
So its running good so far.
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Elder User
Joined: May 2011
Posts: 556
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From: Elyria, Ohio
Well this morning I drove to work no problems then let the truck idle for like 20 mins then went to school. On the way the cel came on and the power went way down and would go over 30 mph. The volt gauge was in the normal though. I'm gonna go see if I can get the codes read at my buddys after school.
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Thread Starter
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Elder User
Joined: May 2011
Posts: 556
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From: Elyria, Ohio
I don't really know how to explain it. It like slows down the rpms will go up but speed and accceleration won't. Its like the powers down and maybe feels like its running on 4 cylinders.
Hotshot
Joined: Oct 2003
Posts: 17,799
Likes: 103
From: Ashland City, TN
Check fuel pressure and oil level.
If the hpop runs out of oil the light will stay on though.
Sounds like a fueling issue to me.
Double check injector harnesses.
Check map hoses for leaks or blockages. Map sensors will really screw with our trucks.
And the last thing i can think of is cps going bad. Swap that if you got a spare. If you dont have a spare, better go get one.
If the hpop runs out of oil the light will stay on though.
Sounds like a fueling issue to me.
Double check injector harnesses.
Check map hoses for leaks or blockages. Map sensors will really screw with our trucks.
And the last thing i can think of is cps going bad. Swap that if you got a spare. If you dont have a spare, better go get one.
Thread Starter
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Elder User
Joined: May 2011
Posts: 556
Likes: 0
From: Elyria, Ohio
Check fuel pressure and oil level.
If the hpop runs out of oil the light will stay on though.
Sounds like a fueling issue to me.
Double check injector harnesses.
Check map hoses for leaks or blockages. Map sensors will really screw with our trucks.
And the last thing i can think of is cps going bad. Swap that if you got a spare. If you dont have a spare, better go get one.
If the hpop runs out of oil the light will stay on though.
Sounds like a fueling issue to me.
Double check injector harnesses.
Check map hoses for leaks or blockages. Map sensors will really screw with our trucks.
And the last thing i can think of is cps going bad. Swap that if you got a spare. If you dont have a spare, better go get one.
I know where the HPOP fill point is how do i check it?
What do you mean injectors harnesses where are these located? like when you say check them. like check for rips tears or burns ?
then map sensor? what is that and where is that?
Sorry for all the questions, but i dont know alot about theses engines.
