SurplusFan98
NAXJA Forum User
- Location
- LA
Hi all,
Just bought a 98 2wd 5-speed 4.0 in great shape with only 130k original miles. I bought it in a crank, no start condition. Been working on it several hours now, and I'm stuck. Here's what I've done:
Thanks
Just bought a 98 2wd 5-speed 4.0 in great shape with only 130k original miles. I bought it in a crank, no start condition. Been working on it several hours now, and I'm stuck. Here's what I've done:
- Tested the battery already in the car. Although it would turn the motor over, it wasn't really reading out any voltage, so I pulled it and replaced with a known good battery from a running 4.0, cleaned connections, etc.
- Did continuity test on all fuses under the hood. All good. Also tested fuse 11 in the kick panel as I read somewhere that it was involved. Also good.
- Tried to start it with a spark plug tester. Engine would turn over but NO SPARK indicated. I also don't hear the fuel pump prime and there is no fuel in the rail when I push on the Schrader valve. I figured I may have a dead fuel pump in addition to something else, so I decided to focus on the spark issue first.
- Checked CPS by confirming infinite resistance on pins B to C. Tried to also do the pulse test, but had trouble doing it alone, and not sure I'm doing it correctly anyway. CPS could be a problem, but I don't believe so at this point.
- Found that the ignition coil was not bolted up to the engine (and therefore not grounded??). I pulled it, tested it, and everything tests in range, so I have a good coil.
HERE'S SOMETHING WEIRD: When I re-connected the coil and bolted it up so it would be grounded, now I have a NO CRANK scenario. Not sure why grounding a known good coil to the block made things worse. - Checked power coming into the coil. difficult to see which wire is which, but with the battery connected and the key in the run position, I get NO VOLTAGE on either pin of the connection coming into the coil. Not less than 12v, but 0v.
- Pulled relays for ASD and fuel pump. Tested the relays with a meter and they seemed healthy. Switched them with some I believe to be working (and also tested good) and tried again. No dice. I also checked for 12v coming into pin 30 from the PDU and it was good for both.
Thanks