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1990 Jeep Comanche 6cyl. Won't Start? HELP! #1105298 10/23/19 12:11 AM
Joined: Aug 2007
Posts: 63
P
polar Offline OP
Getting the Wheeling Fever
Was running fine...then did some stick welding to the frame around/behind the passenger side door. Battery was disconnected and welder was grounded to frame.

Now turns over but will not start............replaced plug wires, ECU

From the Off-Road World
Re: 1990 Jeep Comanche 6cyl. Won't Start? HELP! [Re: polar] #1105299 10/23/19 03:47 PM
Joined: Feb 2000
Posts: 6,221
4x4Wire Offline
Trail Leader
***
I would go back to the battery and connections. Clean battery connections and double check/clean the ground binding between frame - chassis - engine. The ground does need a good solid bond free from rust and corrosion.

Then, there is the TDC (Top Dead Center) sensor. With the 4.0l engine, that is a common problem.

Re: 1990 Jeep Comanche 6cyl. Won't Start? HELP! [Re: polar] #1105300 10/24/19 12:33 AM
Joined: Aug 2007
Posts: 63
P
polar Offline OP
Getting the Wheeling Fever
Thanks John.

Is TDC sensor same as the Crankshaft Position Sensor??

Re: 1990 Jeep Comanche 6cyl. Won't Start? HELP! [Re: polar] #1105301 10/25/19 03:14 PM
Joined: Oct 2001
Posts: 1,986
M
Mike Bondi Offline
Body Damage is Cool
On most engines, they are the same.....Mike


2013 Wrangler Rubicon, 2014 Jeep Cherokee Latitude, 09 Mercedes Benz ML350 4matic...Old scooter trash trying to do good, in the flat lands of Indiana

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