verlane24
Member
- Joined
- June 19, 2003
- Messages
- 41
- Reaction score
- 0
- City, State
- Springfield, MO
- Year, Model & Trim Level
- 93 XLT
The X gave me an unwelcome christmas present yesterday..... it started randomly kicking the idle high at stop lights and eventually got to where it pretty consistantly idles @ 1500 or so.
So I looked for any loose vaccuum hoses, etc with no success. I reset the computer, and the first time I started it, it ran good for about 1 minute, and then kicked the idle back up again.
Strangely enough, when I unplugged the IAC while it was running and the idle went down! I found this to be odd, because I had just changed the IAC about three weeks ago. The old one didn't seem to give me any trouble, I had just changed it because it looked old. Great, I thought had got a bad part. So I took the new one off and threw the old one on, reset the computer and ..... still idling high after about 10 minutes.
So I am a bit stumped. I have recently changed the ECT, and the IAT. I have not tried to pull codes yet, but I have not had a check engine light. I am fairly sure I have a leaky intake manifold, but other than highway pinging I have had no other problems stemming from that.
It came on suddenly, so I would think it would be a sensor but which one? Could the TPS cause this?
Thanks in advance!
Brian
So I looked for any loose vaccuum hoses, etc with no success. I reset the computer, and the first time I started it, it ran good for about 1 minute, and then kicked the idle back up again.
Strangely enough, when I unplugged the IAC while it was running and the idle went down! I found this to be odd, because I had just changed the IAC about three weeks ago. The old one didn't seem to give me any trouble, I had just changed it because it looked old. Great, I thought had got a bad part. So I took the new one off and threw the old one on, reset the computer and ..... still idling high after about 10 minutes.
So I am a bit stumped. I have recently changed the ECT, and the IAT. I have not tried to pull codes yet, but I have not had a check engine light. I am fairly sure I have a leaky intake manifold, but other than highway pinging I have had no other problems stemming from that.
It came on suddenly, so I would think it would be a sensor but which one? Could the TPS cause this?
Thanks in advance!
Brian