No spark on my 86Comanche 2.5

[MrBill61]

Replace the crank sensor position replace the ignition module replace the coil pack replaced ECM.also time dead on. 

still no spark need help

[Jeep Driver]

Have you got power to the coil

 

What I'm wondering is if you're failing to get power to the run circuit at the ignition switch

[Eagle]

1 hour ago, MrBill61 said:

Replace the crank sensor position replace the ignition module replace the coil pack replaced ECM.also time dead on. 

still no spark need help

 

How do you know the timing is dead on if there's no spark?

[MrBill61]

First thing I checked

 

[Ωhm]

Does the fuel injector dump fuel during CRANK? CPS related question.

[MrBill61]

Yes it has a brand new fuel pump on it too

[Eagle]

2 hours ago, MrBill61 said:

First thing I checked

 

 

Impossible. You can't check the timing if there's no spark, and you said you have no spark.

[MrBill61]

I literally look to see where the  was point at the rotor make sure the crank was on top dead center and make sure the distributor point was a little Vance that's how I check timing . Been working on cars since I was 7 years old and that's how my dad told me to put things in time so that's how I check the time 57 years old

 

[MrBill61]

Far as the coil no power to it no power to the ignition module and no power to cps.It does crank over . I'll have to buy new switch

 

 

[Eagle]

10 hours ago, MrBill61 said:

I literally look to see where the  was point at the rotor make sure the crank was on top dead center and make sure the distributor point was a little Vance that's how I check timing . Been working on cars since I was 7 years old and that's how my dad told me to put things in time so that's how I check the time 57 years old

 

 

Well, I'm 74 years old and I was working on cars before you were born. The way you describe may get the timing close (sort of), but it won't get it "dead on."

 

That said, if there's no power to the CPS or coil, there's obviously something amiss. But I would suggest trying to figure out where the problem is before you start throwing parts at it. Was it running and suddenly stopped, or is this a vehicle that's new to you?

[MrBill61]

yes ran and in time was great then my son park that night before. had this for last 10 yrs went fire it few days later. It for start for few seconds shut off . Then try to restart would not start .Then time chain was change about 3yrs ago.this truck is only use ounce or twice a myth.Also the way I time it 3 yrs gotrunnig it ran for last 3yrs 

 

[Big Dan]

Are you ESL?

 

This is going to be incredibly difficult to help you.

[MrBill61]

Some people o this  are very rude . You asking for help and then they you treat like this. You got  very rude people on this site .Big Dan

[zomeizter]

MrBill61, start from the bottom with a fresh mind, check for power and good ground(s) for the ignition system. Ensure the rotor in the dizzy actually turns and that there is no moisture in there. Seasoned gearheads sometimes get their butt kicked by simple issues that are easily missed. Come back with the result, good day...

[Pete M]

is "run" power getting past the ignition switch?  that seems to be another common issue now that our trucks are 30 years old.   

[MrBill61]

Update What I ended up doing was replace the starter switch check the check the whole wiring harness no cracks no shorts no bad wires nothing all good in Iron Horse replaced the crank position sensor for the second time and the third time finally the 4th one worked and now runs again

[HOrnbrod]

25 minutes ago, MrBill61 said:

Update What I ended up doing was replace the starter switch check the check the whole wiring harness no cracks no shorts no bad wires nothing all good in Iron Horse replaced the crank position sensor for the second time and the third time finally the 4th one worked and now runs again

 

If you had replaced the CPS with a genuine Mopar unit instead of using aftermarket junk you would only have to do it once.  

[MrBill61]

2 hours ago, HOrnbrod said:

 

   

They were the jeep dealer  they only had 5 in stock brought 2 from them then went after market .Sir

[HOrnbrod]

49 minutes ago, MrBill61 said:

They were the jeep dealer  they only had 5 in stock brought 2 from them then went after market .Sir

 

Alright..

[Jeep Driver]

1 hour ago, MrBill61 said:

They were the jeep dealer  they only had 5 in stock brought 2 from them then went after market .Sir

I'm interested in knowing what they sold you did you happen to photograph the package if not why not

[MrBill61]

No I didn't think I had to

[Jeep Driver]

Okay well you're claiming a dealer had five cps's in stock and two of the five were bad the other three we don't know about only the two you bought but we have no idea what you bought and I'd like to know I'm assuming you have a remix how I dealer had five cps's in stock when nobody else can find them

And we have no idea what it is that you bought

And yes I photo document every part

[SVPete]

Great that you figured this out MrBill61. When we install a new part we make a very big assumption that it is good. So when we get a new part that is bad, we tend to rule out the part we replaced as the problem. That makes things double-tough.

[Jeep Driver]

5 hours ago, MrBill61 said:

No I didn't think I had to

Did they look like or read like these? Siemens?

 

 

[MrBill61]

Yes ,Yes why you asking this .It's running.