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Hunting Idle


DandysRanger

Member
Joined
Jan 31, 2012
Messages
126
Reaction score
13
Points
18
Location
North of Atlanta
Vehicle Year
1985
Make / Model
Ford
Engine Size
2.3 FI
Transmission
Manual
My credo
If you didn't build it; it's not really yours
Hey Gang,
The Ranger is running pretty good at the moment but it has begun idling a little rough. It will be fine and all of a sudden the idle will drop and chug for 10 sec or so and then it will recover and be fine. It will cycle on and off like that for as long as I am at a stop light. If I gas it a little it will straighten right out and be fine. I replaced the IAC valve a few months ago but it did not really help. I have not pulled codes yet but I suppose I probably should. It has had a recent tune-up with cap and rotor and plug wires. I also replaced the coil.
I was hoping someone else had run into this...
TIA,
Jim
 


RonD

Official TRS AI
TRS Technical Advisor
Joined
Jun 2, 2012
Messages
25,363
Reaction score
8,370
Points
113
Location
canada
Vehicle Year
1994
Make / Model
Ford
Transmission
Manual
If possible the next time it does it, unplug the IAC valve to see if the IAC Valve is causing it or a vacuum leak
 

bfrost

New Member
Joined
Mar 29, 2015
Messages
8
Reaction score
0
Points
0
Location
Folsom, Ca.
Vehicle Year
1999
Make / Model
ford
Engine Size
2.5
Transmission
Manual
check the egr. maybe clean it out. sounds like something mechanical that's sticking or a vacuum issue. mine is kind of doing the same thing but haven't trouble shot it yet, its a small problem and I had bigger issues to deal with.
 

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