Let me give a quick background on my Jeep. I just installed a new Jasper re manufactured engine in my 1995 JGC. I had some fuel issues and some timing issues but worked all of those out. I replaced the PCM and all is good now except the truck feels like its not as powerful. When going up a hill or something I have to put my foot to the floor and it goes no where. What can I check to see whats going on with this engine?
Feels like I'm running on 4 instead of 6 cyl.
Aug 03, 2006
8 Replies
ENGINE LOSS OF POWER 1 . Incorrect ignition timing . 1 . Refer to Group 8D, Ignition System .
- Worn or burned distributor rotor. 2. Install new distributor rotor.
- Worn distributor shaft. 3. Remove and repair distributor (refer to Group
System).
- Dirty r incorrectly gapped spark 4. Clean plugs and set gap (refer to Group 8D, Ignition System).
plugs.
- Dirt or water in fuel system . 5. Clean system and replace fuel filter.
- Faulty fuel pump. 6. Install new fuel pump.
- Incorrect valve timing . 7. Correct valve timing .
- Blown cylinder head gasket. 8. Install new cylinder head gasket.
- Low compression. 9. Test compression of each cylinder.
10 . Burned, warped or pitted valves . 10 . Install new valves .
11 . Plugged or restricted exhaust 11 . Install new parts, as necessary.system .
12 . Faulty ignition cables. 12 . Replace any cracked or shorted cables .13 . Faulty coil . 13 . Test and replace, as necessary (refer to Group 8D, Ignition
14 . Faulty crankshaft or camshaft System).sensor . 14 . Replace sensor .
Bill,
My Jeep feels like she is running on four cylinders, too. Any ideas?
Earle
The only solution is to cut your losses and sell me your Jeep for $50.
Carl
Fuel pressure regulator/vaccuum line to the regulator possibly.
How many miles since the engine was put in? Depending on the clearances on the rebuild, it will be tight for a while (2000-5000 miles). Do a compression check, and also you may want to check bearing clearances with some plastigage.
It's a Real Jeep - meant to be slow :-)
Dave
Join the Discussion
Have something to add? Share your thoughts — no account required.
Didn't find your answer?
Ask the community — no account required