hoberock
11/29/2006 4:24:30 PM
I have a '97 Disco I. Lately after it warms up, the engine has a tough time idling down. I noticed that I was having braking problems, but as it turned out the idle would not drop when coming to a stop (it would stay at ~3K rpm). After sitting for about a minute stopped (or stopped in Neutral) it will idle down to ~750 rpm. If I am on the highway and put it in neutral, it will idle at ~3,000 rpm. It does not do this 100% of time though. If it is in park or neutral (stopped) and I hit the gas and let up, it will stick at ~3,000 rpm for 20 seconds or more then drop back to 750 rpm (engine warmed up). It seems more of an issue now that it is cold, but I don't think that is the root cause. This summer, I put in a new fuel pump, so I doubt that the pump has anything to do with it. Also, about a week ago it would not idle. Once it sat for about 5 minutes, it was fine and it has not happened again. I checked the throttle linkages, cable, etc and it is not binding. I have no fault codes as well. Any ideas?? I need Help!!
Thanks,
Tim
98roverguy
11/29/2006 5:58:41 PM
Maybe try cleaning out your throttle plate, plenum and MAF sensor. Maybe you got some gunkyness in there.
Disco Mike
11/29/2006 6:48:32 PM
Clean your throttle body and idle control but NEVER your MAF, you don't have codes showing a MAF and clean them kills them.
Mike
Brad S1
11/30/2006 12:11:07 AM
I had the exact same issue, I just adjusted the idle at the throttle body, lowered the hex bolt that keeps the TB blade in check at idle, closed it a little more and it was fine. Fixed all the weird idle issues... I'd start mine up and it'd shoot to 3000... Same slowing down at red lights, this fixed it.
