The Mud Pit > Wrenching

Anyone ever seen an engine do this?

<< < (2/5) > >>

gearhead1985B:
the timing is jacked all it is doing is burning off the vapors left i have never seen it in a fuel injected motor before though cause the spark gets killed when you shut off the key

zjorvis97:
The timing is set by the computer and can't be manually adjusted. I have tested, replaced and checked every sensor. I managed to find someone who knows the 5.2 motors well and he said check the grounding straps for the engine and computer. So we will see today brings.

reg:
try seafoam.. i know it sounds like a quick fix, but it may help. sounds more like a lack of fuel, not extra fuel. when was the last time you cleaned the fuel system?

dieseling is igniting fuel without spark by using engine compression. To see if the plugs are firing correctly, pull one off, start it and watch to see if it sparks. remember,1. don't hold it with bare wet hands and 2. the plug needs to be grounded to spark. if all the plugs works fine it is a fuel issue. it doesn't seem like timing to me being as computers either work, or don't work. don't let it run too long w/out the plug in though, just enough to get a spark.

hope it helps
-reg

zjorvis97:
I bought a fuel pressue gauge today and that is my next step. The jeep has 165,000 miles and to my knowledge the filter has not been changed. It has sat for the 3 or 4 months so i am guessing this is an issue. I will post up how things go.

zjorvis97:
the fuel pressure was normal, 40-45psi. firing order was right.

Navigation

[0] Message Index

[#] Next page

[*] Previous page