92 Explorer 4.0 OHV Idle problem.

[Sanitarium]

Hi i Have a 1992 Explorer Eddie Bauer 4x4, I bought it in mid February of this year and in April the intake gasket blew. I finally got the time to try to fix it but now it has a really rough idle. I've gone back over everything and all my vacuum hoses are reconnected in the proper places, and the Spark plug wires are connected properly, i don't have access to an OBD1 scanner and the engine light doesn't come on. I was wondering if you had any ideas on what to check.

 

[MrShorty]

I've gone back over everything and all my vacuum hoses are reconnected in the proper places, and the Spark plug wires are connected properly

Over the internet, I can't independently verify these things, so I have to take your word for it. If you have any doubt, check them again. While you're at it, double check other connections (like fuel injectors).

i don't have access to an OBD1 scanner and the engine light doesn't come on.

A paper clip and a functional CEL can serve as a trouble code reader. I would probably pull codes just to see if the computer can see something that I may have forgotten to plug in.

I would probably also check fuel pressure.

Does it only run rough at idle? Does it smooth out if you give it a little throttle? Maybe the IAC valve has an issue.

 

[Sanitarium]

Yeah it's only rough at an idle, it is completely smooth by 3000rpm. Some of the injector connector clips did brake on one side but they seem to be holding, i know its something i need to replace later on. I'll try checking the fuel pressure when i get a chance to work on it again.