High Idle

[flbudman]

I have a 92 explorer sport XL with 140,000 miles that has a high idle. When I start the engine it idles at 1,300 RPM and then slowly comes down to 1,000 RPM after about 5 minutes. I have a flowmaster installed and the Kurtz Kustom intake. New plug wires and Bosch 2 Platinum Plugs. I have cleaned the MAF before, didn't help. I also put a new clutch and slave cylinder in. Any suggestions on what maintenance I should do. Also the transmission shifts kinda rough. Thanks in advance.

 

[Robb]

You may want to check that the throttle linkage (and cable) is free and well lubed. Also, check for a vacuum leak. Do a search for vacuum leak, there are many different opinions on how to check for them.

 

[Alec]

Also, has the computer been reset since you did the power and ingnition mods? If not, may want to do that. Here's a good description how: Dead Link Removed

Welcome to the site and good luck!

 

[Alec]

Please do not double post, flbudman. I deleted your duplicate thread.

 

[Robb]

Don't take it personally flbudman. All newcomers make mistakes, "he without sin shall cast the first stone". Everyone here has. Keep the legit posts comin'.

 

[flbudman]

sorry. I though I posted it in the wrong spot the first time.

 

[flbudman]

I reset the computer and it still idles at 1000RPM. Could it be the exhaust b/c I have one pipe coming from the engine into the flowmaster and then two pipes coming from the flowmaster to the back of the explorer

 

[88vert]

Check your tps and iac you might want to check your altenator too

 

[flbudman]

Sorry, but what is tps and iac?

 

[88vert]

Throttle positioning sensor,idle air control valve.Try cleaning them first.They are not that much to replace.I.A.C. is on the drivers side looks like a little cylinder bolted with two bolts to the upper intake I think 10 millimeter bolts.T.P.S. is on the front of the upper intake two screws hold that on.Hope this helps