Flashing check engine light?

[hampsterzone]

Thanks Cody! I just ordered a complete replacement Platinum Coil Pack (8). They have a 5 yr. unlimited mileage warranty. I figured I might as well replace them all since I just barely replaced all the spark plugs and spring caps. I got a good deal too! $141.20 from Auto Parts Warehouse. Hopefully that fixes the problem and just for anyone else, I have had my fuel system and air system cleaned. So there is NO reason to believe that my TB, MAF, or fuel filter is the cause especially since they were cleaned by a professional and the filter was replaced yesterday prior to the before mentioned problem.

[hampsterzone]

I am still planning on replacing all the coil packs. I am kinda stumped. I went to Auto Zone and had my truck scanned for codes. Guess what!? No codes found. (Pass) This seems weird to me considering my check engine light flashed on two separate occasions. What is up with that? I believe that my truck misfired but why no codes? If there is is something serious that could be wrong, why no code? Hmmmmm........

[jmt0645]

it flashes everytime it senses a miss fire but will only set a DTC if it miss fires for a prolonged amount of time. I'd also suggest pulling the plugs just to insure they are not fouled any.

[88Racing]

Originally Posted by hampsterzone

Thanks Cody! I just ordered a complete replacement Platinum Coil Pack (8). They have a 5 yr. unlimited mileage warranty. I figured I might as well replace them all since I just barely replaced all the spark plugs and spring caps. I got a good deal too! $141.20 from Auto Parts Warehouse. Hopefully that fixes the problem and just for anyone else, I have had my fuel system and air system cleaned. So there is NO reason to believe that my TB, MAF, or fuel filter is the cause especially since they were cleaned by a professional and the filter was replaced yesterday prior to the before mentioned problem.

eBay>>Global or Uneek DG511's about 100...

[hampsterzone]

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......

[88Racing]

Originally Posted by hampsterzone

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]

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

[88Racing]

Originally Posted by hampsterzone

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]

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).