Hi All,
I have read dozens of posts on here and went through multiple troubleshooting steps. But, let me back up.
I drove the 1989 Jeep XJ (4.0) into the garage 2 months ago, it was running great. Put a new 6" lift with coils, shocks, transfer case drop, SYE, rear shackles, add a leaf and rear lift blocks.
Installed an improved headlight wiring harness and new headlights, they work great.
Changed the rear diff cover and serviced both diffs.
Changed rear main seal and oil pan gasket.
Changed transmission (auto) pan gasket and filter screen.
Installed new tranny cooler lines.
Installed a new, right side engine mount.
And, lastly, completely overhauled all of my roof rack holes to plug leaks.
All of the new fluids are in and there is 1/2 tank of gas.
After getting all of this done, went to start it and I have a no spark issue. When I turn the key on, the fuel pump is not turning on, however when I crank it, it comes on. I installed a brand new CPS. I have another 89 XJ here so started swapping parts, all relays, coil, ignition module, cpu and refreshed all grounds. Still no spark and the fuel pump is not engaging with the key in the on position.
Obviously, something I did to it when I did all the work caused it. The only thing that I noticed electronically speaking is that the battery remained connected throughout the entire 2 months of down time and went dead quickly when trying to start it. I put it on a deep cycle charge and it seems fine now. Plenty of cranking amps. Another weird thing, when I crank the engine now, the temp gauge is pegged! It has never done that before.
Does any obvious ideas come to mind? or maybe I should try swapping some other parts of of the other 89' XJ?
Any help would be sincerely appreciated!!
Thanks, Mark
El Dorado Hills, CA
(Gold Country)
I have read dozens of posts on here and went through multiple troubleshooting steps. But, let me back up.
I drove the 1989 Jeep XJ (4.0) into the garage 2 months ago, it was running great. Put a new 6" lift with coils, shocks, transfer case drop, SYE, rear shackles, add a leaf and rear lift blocks.
Installed an improved headlight wiring harness and new headlights, they work great.
Changed the rear diff cover and serviced both diffs.
Changed rear main seal and oil pan gasket.
Changed transmission (auto) pan gasket and filter screen.
Installed new tranny cooler lines.
Installed a new, right side engine mount.
And, lastly, completely overhauled all of my roof rack holes to plug leaks.
All of the new fluids are in and there is 1/2 tank of gas.
After getting all of this done, went to start it and I have a no spark issue. When I turn the key on, the fuel pump is not turning on, however when I crank it, it comes on. I installed a brand new CPS. I have another 89 XJ here so started swapping parts, all relays, coil, ignition module, cpu and refreshed all grounds. Still no spark and the fuel pump is not engaging with the key in the on position.
Obviously, something I did to it when I did all the work caused it. The only thing that I noticed electronically speaking is that the battery remained connected throughout the entire 2 months of down time and went dead quickly when trying to start it. I put it on a deep cycle charge and it seems fine now. Plenty of cranking amps. Another weird thing, when I crank the engine now, the temp gauge is pegged! It has never done that before.
Does any obvious ideas come to mind? or maybe I should try swapping some other parts of of the other 89' XJ?
Any help would be sincerely appreciated!!
Thanks, Mark
El Dorado Hills, CA
(Gold Country)
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