RedHeep
NAXJA #1499
- Location
- Landenberg, PA
Do you have pressure at the rail?
Have you changed the fuel filter?
Have you changed the fuel filter?
Do you have pressure at the rail?
Have you changed the fuel filter?
Given that I didn't have a no start issue prior to the head swap, it should be fine.
Fuel filters commonly cause no start issues. That's $10 variable reduction.
Did you check fuel pressure when the problem was happening?Ok update...
I confirmed that the fuel rail has good pressure (49psi). This led me to believe that perhaps the injectors had dried out and gummed up in the 2 months they've been out and exposed. I ordered new injectors and just got around to installing them. They had no effect.
To recap:
Jeep turns on and runs for about 5-10 seconds, idles a bit rough (not terrible) and then dies. When I try to start it again, it dies almost immediately. If I try to start it again, it barely starts up. It dies even if I try to rev it slightly.
This pattern of events led me to believe that it was fuel starved (and is why I changed the injectors). Does anyone have additional suggestions? It always has the pattern I describe above.
Could this be a sensor issue? I had removed the IAC, TPS and MAP sensor on the throttle body.
Could the symptoms be related to the new head / valves? I don't see how this could be given the odd starting pattern.
I'm going to check the plugs tomorrow and make sure that the engine ground that connects the firewall to the rear-right head bolt is clean (does it matter if I used a stainless nut?).
At least it looks good...
Did you check fuel pressure when the problem was happening?
Yes, stays pegged to 49psi. Will confirm again tomorrow. Doesn't appear to be a leak down issue either.
Another idea...could be a gas issue? The gas is 2-3 months old at this point, which I think it approaching the life span for 10% ethanol gas.
I would make sure your wires to the coil rail are ok. They fire in pairs. You have a pair that appears to not be firing.