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-   -   1987 Comanche please help (https://www.cherokeeforum.com/f88/1987-comanche-please-help-223338/)

ck12sk 03-14-2016 11:53 AM

1987 Comanche please help
 
I have a 1987 jeep camanche 4.0 5 speed i just purchased it was running before purchase they pulled the engine and put new clutch and motor mounts in it when they got it back together they couldnt get it to start that was a year ago now i have bought it and i have replaced coil ignition module and ecm i am not getting spark or injector pulse any help would be appreciated thanks

zebvance 03-16-2016 07:35 AM

Check your CPS. BTW its "Comanche" not camanche

ck12sk 03-16-2016 08:44 AM


Originally Posted by zebvance (Post 3227720)
Check your CPS. BTW its "Comanche" not camanche

Cps is new its a mopar sensor also

88whitecomanche 03-16-2016 09:14 AM

Check all your grounds...you might have 1 not connected...
Do you know if they changed the flywheel when they did the clutch?

ck12sk 03-16-2016 11:11 AM


Originally Posted by 88whitecomanche (Post 3227756)
Check all your grounds...you might have 1 not connected...
Do you know if they changed the flywheel when they did the clutch?

Not sure if they did or not on that but can find out i checked all grounds for the harness and cleaned all the surfaces where they bolted on amd still nothing

cruiser54 03-16-2016 03:26 PM

Test the CPS. Tip 7 at www.cruiser54.com

ck12sk 03-16-2016 03:33 PM


Originally Posted by cruiser54 (Post 3227922)
Test the CPS. Tip 7 at www.cruiser54.com

I will try that when i get home do u know how many power wires go to the ecm that need to have 12 volts cause i am thinking i have a wiring isue with it

cruiser54 03-16-2016 04:57 PM

2 Attachment(s)

Originally Posted by ck12sk (Post 3227923)
I will try that when i get home do u know how many power wires go to the ecm that need to have 12 volts cause i am thinking i have a wiring isue with it

Here:

Jeep Driver 03-16-2016 08:31 PM


Originally Posted by ck12sk (Post 3227739)
Cps is new its a mopar sensor also



Who installed the sensor?

cruiser54 03-16-2016 08:36 PM


Originally Posted by Jeep Driver (Post 3228047)
Who installed the sensor?

Yeah. and you can't assume it's good. Or mounted correctly.

Jeep Driver 03-16-2016 08:58 PM


Originally Posted by cruiser54 (Post 3228051)
Yeah. and you can't assume it's good. Or mounted correctly.


Guarantee you they left it on the trans during install and crushed it.

ck12sk 03-17-2016 04:13 PM


Originally Posted by cruiser54 (Post 3227970)
Here:

Ok i done the test today and i think it is bad because its reading 0.00 ac volts no voltage at all

njs 03-17-2016 09:38 PM


Originally Posted by ck12sk (Post 3226858)
I have a 1987 jeep camanche 4.0 5 speed i just purchased it was running before purchase they pulled the engine and put new clutch and motor mounts in it when they got it back together they couldnt get it to start that was a year ago now i have bought it and i have replaced coil ignition module and ecm i am not getting spark or injector pulse any help would be appreciated thanks

it sounds like in may be the crank posusson senser it is located on the top of your trans, and it runs to your distrubitor if its bad u will not get spark from your coil to your sp wires i hope this helps----njs

cruiser54 03-17-2016 10:54 PM


Originally Posted by njs (Post 3228612)
it sounds like in may be the crank posusson senser it is located on the top of your trans, and it runs to your distrubitor if its bad u will not get spark from your coil to your sp wires i hope this helps----njs

Uh, he tested it and it's no good.

And, the CPS sends nothing to the distributor. It sends a signal to the ECU.

I know you're new, but we don't take kindly to half assed info or suggestions around these parts.

ck12sk 03-18-2016 06:01 AM


Originally Posted by cruiser54 (Post 3228649)
Uh, he tested it and it's no good.

And, the CPS sends nothing to the distributor. It sends a signal to the ECU.

I know you're new, but we don't take kindly to half assed info or suggestions around these parts.

well sorry i tryed to explain it the best i could this thing is getting the best of me i am going to try a new crank sensor today


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