Best way to Compression Test the cylinders
#61
#62
You might want to take a close look at the fuse box under the hood. Maybe it got water in it and was slowly going out as you drove it after you got it unstuck. I really think that you have some sort of electrical issue going on since you are sure you have good spark and fuel pressure.
When I say I have spark, if I can keep it running for a half a minute, I can pull the plug wires and see spark against the valve cover or hear the tick, tick, tick when close to the plug. But lately I've noticed when I remove the plugs they smell like gas? Wet fuel. That's why I just bought a second batch of new plugs. It doesn't make sense to me that the coils are producing enough spark for ignition and then dying off. It also has a new battery which I've been keeping on a charger for all of this testing. I tried unplugging all the plugs from one coil on each side and tried to start, it's far worse than everything plugged in. This Disco is going to kill me!!
#63
This might be a stupid question, but are you sure you have the wires hooked up correctly at the coil and cylinders?
I know it's a Pain In The *** but I think you might want to pull the CPS back off and look at it again to make sure the plug from the engine harness looks good and there is no oil or debris in there. If you just bought the CPS it should have a warranty, I would just return it for another one to make sure it's not the issue.
I know it's a Pain In The *** but I think you might want to pull the CPS back off and look at it again to make sure the plug from the engine harness looks good and there is no oil or debris in there. If you just bought the CPS it should have a warranty, I would just return it for another one to make sure it's not the issue.
#64
This might be a stupid question, but are you sure you have the wires hooked up correctly at the coil and cylinders?
Attachment 27186
I know it's a Pain In The *** but I think you might want to pull the CPS back off and look at it again to make sure the plug from the engine harness looks good and there is no oil or debris in there. If you just bought the CPS it should have a warranty, I would just return it for another one to make sure it's not the issue.
Attachment 27186
I know it's a Pain In The *** but I think you might want to pull the CPS back off and look at it again to make sure the plug from the engine harness looks good and there is no oil or debris in there. If you just bought the CPS it should have a warranty, I would just return it for another one to make sure it's not the issue.
http://vid1209.photobucket.com/album...psm2artuye.mp4
Now for a fun and new interesting fact. Now that it actually idles I can test for vacuum leaks. If I spray starter fluid on the passenger side nothing. Down the center nothing, on the driver side, 4 alarm fire every time! It's easy to blow out, but obviously I have some sort of electrical issue on the driver side with the plugs or a major leak. What to do next to fix this?
#65
Fire is no good. Where is it coming from exactly? If you think you have an electrical short causing a spark, causing a fire, then that's a problem. This might help you find the short without catching yourself on fire.
1)Wait until it gets dark out
2)go out and start the truck and let it idle
3)get a spray bottle with water and spray around while you look for arching.
(It helps if you turn out all flashlights and get it as dark as possible.)
When you are trying to give it gas in the video you don't have the MAF hooked up. That good be part of the issue. Although your truck appears to be running fine I can tell by the slight knock sound that you probably have a misfire. When my coils went bad my truck would idle okay but when you gave it gas you could start to tell there were dead cylinders.
1)Wait until it gets dark out
2)go out and start the truck and let it idle
3)get a spray bottle with water and spray around while you look for arching.
(It helps if you turn out all flashlights and get it as dark as possible.)
When you are trying to give it gas in the video you don't have the MAF hooked up. That good be part of the issue. Although your truck appears to be running fine I can tell by the slight knock sound that you probably have a misfire. When my coils went bad my truck would idle okay but when you gave it gas you could start to tell there were dead cylinders.
Last edited by R0VERGUY; 08-28-2015 at 09:47 PM.
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Mikey1976
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07-01-2010 10:35 PM