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-   -   Flashing check engine light? (http://forum.gopowerhungry.com/showthread.php?t=5936)

88Racing Thu, February 17th, 2011 06:53 PM

Quote:

Originally Posted by hampsterzone (Post 44598)
I just changed all 8 coil packs on my truck and still there is a misfire w/out detection. I heard it could be the camshaft position sensor? I al so just changed the spark plugs and spring caps a few weeks earlier. Now what do I do? Without a code, I am waking in the dark......

where did you get your coil packs from?
What did you use for the replacement spark plugs?

hampsterzone Thu, February 17th, 2011 07:10 PM

Car Quest on the coil packs and Auto Zone for the original spark plugs replacements. Camshaft sensor?

88Racing Thu, February 17th, 2011 08:09 PM

Quote:

Originally Posted by hampsterzone (Post 44600)
Car Quest on the coil packs and Auto Zone for the original spark plugs replacements. Camshaft sensor?

Try rockauto.com

Could also be...

Vct solenoids....both banks...

It bites when you don't get stored codes...

hampsterzone Thu, February 17th, 2011 10:32 PM

As per my mechanic I drove to try and create a DTC code. I put 8 new quality coil packs on earlier and replace both cam shaft sensors that was suggested on another forum. With all that I have replaced the spark plugs and spring caps about a month ago. When I went down the interstate it really made my engine jerk and I could hear what sounded like back firing. Like little pops in the exhaust system??? Please help, I am at a lose for ideas. If it matters, when it idles it is flawless. If I rev the engine in park, flawless! Drive slowly and accelerate slowly, seems good. Go faster and bam, it is hesitating/jerky/and little pops in the exhaust (i think).

88Racing Thu, February 17th, 2011 11:27 PM

Okay...please read carefully....

Have you....
Cleaned the tb
Cleaned the maf
Changed the fuel filter
??????????????????????????
Also...
Are you now on your NEW second set of spark plugs, springs, and coils?
Or still the first?

I see new cam sensors

Other possibilities...
Vct solenoids both banks
Fuel injectors

hampsterzone Thu, February 17th, 2011 11:55 PM

I had my fuel injection system cleaned at Big 'O Tires. This my first set (just put them on). I just don't know what is up. My truck has been maintained properly as far as changing out things. What I don't know is what do do next. There is no codes. But it does misfire/hesitate/backfire when accelerating. Nothing seems wrong when at an idle or while in park and reving the engine up.

hampsterzone Fri, February 18th, 2011 01:10 AM

I am thinking that the VCT Solenoid could be the issues after reading up on it. I have replaced both cam shaft sensors, all 8 coil packs today. Anything else I should try? EGR sensor?

hampsterzone Fri, February 18th, 2011 09:48 AM

This is increasingly frustrating! No codes! Just a hard hesitation that jerks the truck and sounds like a back fire or poping noise up front. When I let off the truck runs great. If I accelerate it does the jerking and back firing. Rev it in park, nothing. Rev it in neutral, nothing. Anything more on if this could.be caused by the VCT Solenoid?


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