Running rough

[OllllllllO]

I am going to be picking up a 1987 Jeep Comanche 4.0 l6 - it is running rough at idle but seems to be fine once you give it some gas... any thoughts on what could be wrong??

 

 

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[Jeep Driver]

 

[rokinn]

5 minutes ago, Jeep Driver said:

 

Nice   Ya gotta love the great Carnac.

[13 Legion]

 Showing your age! Well played!

[omega_rugal]

throttle position sensor bad or out of adjustment... start from there... vacuum leak, IAC valve...

[cruiser54]

Make sure the intake manifold nuts aren't loose among a host of other things. Get it home and we'll give you some guidance then. 

 

Carnak is the second cousin to this guy.

 

 

[cruiser54]

As soon as you get it home, we'll get our 3 best guys to brainstorm this with you. 

 

 

[gogmorgo]

Cruiser's Renix tips ^^^ will sort you out. 

It's tough to diagnose anything like that without the truck in front of someone, but I doubt it's going to be something too difficult. 

Once you have it in hand, do a basic tuneup (spark plugs, wires, distributor cap and rotor), change fluids, etc, line you should on a used vehicle purchase with unknown history, then start working your way through the Cruiser's tips. www.cruiser54.com.

 

Its too bad we've got to jump on a new member like that, even if we can't really pinpoint an exact answer to his issue with what we have. 

[Manche757]

On 7/18/2019 at 10:26 AM, cruiser54 said:

As soon as you get it home, we'll get our 3 best guys to brainstorm this with you. 

 

 

 

The Prescott city water reservoir must be in the middle of a peyote patch.

[cruiser54]

Uh-oh. I'm on a well............