my jeep has an assortment of problems, but when everything is just right it works great. it is a 88 4.0 with 370k. it stopped working after i pulled and fixed a leak in the radiator. when you turn the motor over i get no fire. i have checked the fuel pressure and i have voltage to the ignition coil. i replaced the coil and the base so far as well as the rotor and cap all to no sucess. i have read that the cps might be the problem. how do you go about checking it since it is fairly hard to replace? any other ideas to get it to start?
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renix no start
- Thread starter ttu.or
- Start date
OLAK
NAXJA Forum User
- Location
- Vancouver Island BC
disconnect the plug going to the sensor. put an ohm meter on the wires coming from the sensor. Should be 200 ohms plus or minus 75. if not replace
bcmaxx
NAXJA Forum User
- Location
- The West Kootenays,B.C. Canada
It was easier on my 89 to get at the cps from the bottom of the jeep.Dirtier but easier.
nekocopter
NAXJA Forum User
- Location
- Astoria, OR
I've had the same problem, and just disconnecting the sensor and plugging it back in, (At the connection at the firewall) solved my issues... Give it a whirl.
Cornflake
NAXJA Forum User
- Location
- Redding FAR*NORCAL, CA
If he is getting fire than it's not cps. Trying to turn over with no fire, it could be cps. Are you sure you are getting spark? Pull off a spark plug wire and double check. Also, you have a renix rig like mine and when mine wouldn't start and I had no fire, I thought it was the cps, but it was as 5-90 puts it the "Renix killer" which is the ground strap at the back of the engine. Mine was shot, replaced it and never had another problem.
nekocopter
NAXJA Forum User
- Location
- Astoria, OR
I replaced a coil and module before I figured out it was the CPS connection.
Cornflake
NAXJA Forum User
- Location
- Redding FAR*NORCAL, CA
in my experience, and others around me, no ones coils ever go out. it's always something else. that is except for vw's. i had many bugs, squarebacks, buses and i've had a lot of bad coils, but that's been it.
langer1
NAXJA Forum User
- Location
- Mineral City,Ohio
nekocopter said:
A bad CPS will do just that, unplug it and it works again, but it will do it again.
As it gets worse it happens more and more untill it don't restart at all.
Get a new CPS now, your doing to need it.
parkeruph
NAXJA Forum User
- Location
- Hudson, CO.
My 93 Turned out to be the Pick-up coil (Stator) inside the distributor. The unit the wires go to. Had to pull the dizzy, knock the pin out of the gear to get it off, $47 at NAPA.ttu.or said:
Don't know if your's is the same as my 93.
Keep us posted when you find the real problem.
