Idles up and down


manley

15+ Year Member

Joined
Oct 20, 2007
Messages
58
Points
3,101
City
Richmond, IN
Vehicle Year
1987
Engine
4.0 V6
Transmission
Manual
Tire Size
31
My credo
Wut?
If I drive for awhile and get the truck up to temp, then let's say, stop for gas, when I get back in the truck and start it up, the idle goes up and down. Revving the engine does nothing to stop it. Only driving down the road alleviates the problem. It doesn't seem to be a serious problem, just annoying. I just changed the fuel pump, sender and all that because it was getting hard to start when cold. Idle problem is still there. Does a 93 have a fuel pressure regulator that might cause problems? Maybe something is absorbing heat when I shut the truck off. Similiar to vapor lock on carbed engines? Dunno. At a loss on this one.

Does anyone else have a fuel gauge that reads 3/4 full when the tank is topped off? I was hoping the new fuel sender would solve this, but it actually reads a little lower now.

I really don't like this truck! I miss my 87.
 
sounds like a bad TPS to me. you can usually test them with a DVOM.

your fuel gauge problem could be a bad instrument cluster.
 

Sponsored Ad

TRS Events & Gatherings

Latest posts

Featured Rangers

Want to see your truck here? Share your photos and details in the forum.

TRS Latest Video

Official TRS Merchandise

Follow TRS On Instagram


Product Suggestions

Back
Top