No spark

[XJs4Ever]

Ok, Jeep was stalling and hard to start. Replaced the fuel filter which it needed, and it was ok for a few days. Then started the same crap again. Found no spark from the coil so I replaced the crank sensor, started it and it ran for a minute and died. Has not fired since. Thought to myself "well its got the original coil" so I put a new coil in. No joy.

Cannot just buy a camshaft sensor for it - gotta replace the entire distributer so I ordered one. If that's not the fix, a couple guys think I got a defective crank sensor from the parts store. I guess I can see if O'Reilly's will take it back and I'll get the next step up from Master craft.

 

BTW - hi guys!! :waving:

[big66440]

Hi there, I think we'd be able to help you better if you gave us some info on your vehicle.

[Marine1Texas]

I have seen bad cps sensors from the big box auto part retailers before. Also make sure you have done the ground updates in cruisers list. The way around using cps for coil spark activation is HEI dizzy. 

[XJs4Ever]

Huuuuhhh???!!! Cruiser whaaaaat?? Who's dizzy?

 

'91 4.0L HO, auto trans

 

I don't have the experience to test all the sensors, and am ok with replacing 15 yr old parts even if they're good. Just wish I didn't have to spend hundreds of $$ and several days in the process

[HOrnbrod]

Did you check for fault codes Rick?

 

And yes, you can replace the sync sensor in the 91 distributor, but you're better off replacing the 91 dizzy with a 94 and up unit.

 

http://comancheclub.com/topic/37024-replacing-distributor/?hl=sync+sensor

[XJs4Ever]

How you been, Don?

 

Codes? No. Dunno how

[HOrnbrod]

Good Rick. You? You gotta get on here more often mate.  :cheers:

 

http://comancheclub.com/topic/28111-reading-obdi-91-and-92-mj-fault-codes/

[XJs4Ever]

Yea, Cins 95 ZJ is a dream to replace the cam sensor. Pop off the cap n rotor and there it is. Mines a pain in the arse

[HOrnbrod]

Got that right. Even if the stock distributor's not the problem, the 95 you bought is a good upgrade.  I've had two no start problems; bad CPS and sync sensor, and both showed up as fault codes. Worth a try.

[XJs4Ever]

O'Reillys did exchange the crank sensor due to it had a one year warranty, and I grabbed a re-man distributor just for the cam sensor. I'll return the coil and comp back forty bucks for it to soften the blow on this clusterfluck.

My only concern now is getting the distributor stabbed correctly and without timing issues. My health has taken some serious hits lately and without going into detail, I need to chill till tomorrow before crawling under that dang thing again.

I will post an update when it's resolved