Rough Idle

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Apr 2, 2004 | 05:50 PM

#16

Gregfla

New User

Joined: Mar 2004

Posts: 22

Likes: 0

From: Amelia Island, Fl.

Not getting the CEL, just the code. Tried blocking off the EGR with a plate, but it didn't help.

Apr 3, 2004 | 12:24 AM

#17

EPNCSU2006

Lead Driver

Joined: Nov 2002

Posts: 9,555

Likes: 40

From: Concord, NC

Quote:

Originally Posted by ham4ever

Thanks you for the info so what you are saying I just need to use the green and black wires to check voltage and resistance?

Yes. Also check for 5V between the orange wire and the black wire too with the key on. I think the TPS could be damaged, but I don't know for sure.

Apr 4, 2004 | 10:12 AM

#18

ham4ever

Thread Starter

Freshman User

Joined: Mar 2004

Posts: 33

Likes: 0

From: pa.

Thanks

Quote:

Originally Posted by EPNCSU2006

Yes. Also check for 5V between the orange wire and the black wire too with the key on. I think the TPS could be damaged, but I don't know for sure.

Did some work on the truck over the weekend.The info you guys gave really helped and I appreciate it. I replaced the TPS and that seemed to help alot still have a rough idle but not quite as bad. The check engine light went out on replacement of TPS. I pulled codes again and came up with a 32. I removed the EGR valve and checked operation worked it manually and it seem to work ok. I did a a voltage check and got about 5 volts going to valve.Resistance read about 3000 ohms and book said it should be about 5000 ohms. I dont thnk the valve is working properly..Thanks again

Pat

Apr 4, 2004 | 10:53 AM

#19

sty

Senior User

Joined: Mar 2003

Posts: 140

Likes: 0

From: Hamilton Ontario

Quote:

Originally Posted by ham4ever

Thanks for all the info . Where is the throttle sensor i just replaced some type of idle sensor? It has two screws that bolt on I guess is the throttle body and has a plug that goes into it.

Thanks, Pat

This was probably the IAC.