sjdurb
Member
- Joined
- November 24, 2009
- Messages
- 30
- Reaction score
- 0
- City, State
- Houston
- Year, Model & Trim Level
- 1998 Sport
So my truck starts up perfect, it idles fine until it warms up and then, when it drops the RPM's down to about 700 it starts oscillating and shudders a bit. This has been bugging the tar out of me. I have noticed that when I pump the breaks the RPMs will rise to 1200'ish and it idles there for a few seconds, then drops back down to 600-700 and starts idling rough/shuddering again.
Is this a brake booster problem? Any ideas?
1998 Ford Explorer Sport (2WD)
Also: I have cleaned IAC and MAF, and changed the air filter... no big difference.
Is this a brake booster problem? Any ideas?
1998 Ford Explorer Sport (2WD)
Also: I have cleaned IAC and MAF, and changed the air filter... no big difference.