idling problems

Mustang_289 · 07-18-2002, 01:23 PM

hey guys i have a 1988 gt and recently i have had some problems with it idling right. here are some examples of what happens. when i am driving down the road and stop at a stop sign,light etc. the engine cuts off. another thing it does is when i am driving and stop at a sign it idles at around 2-2300 rpms. and then some times it idles fine.

what should i check to try to get this problem ironed out?

i have recently put new distriputer cap, rotor, wires, and coil on it.

Hethj7 · 07-18-2002, 07:14 PM

I am not sure how the speed density cars are set up, but have you checked your throttle position sensor? If this is not set correctly, idling problems can occur.

86 Grand Marqui · 07-18-2002, 09:37 PM

Possible TPS problem. Not sure with those symptoms.I know there is a big general problem with V-8 fords of the Mid and Late 80's, possibly into the 90's, not sure.That problem is; "When you start the car,whether it's warm or not, the Engine will "flash"to 2,500 or so and then back to a normal type idle".Mine does it. I have checked vacuum, so that's not it.I have set my TPS from .7--1.4 volts. It doesn't change the problem with my engine.I have it set at .98 V at this time which is the number I hear and read is best.Sorry, I can't helpya.

07-18-2002, 01:23 PM	#1
Mustang_289 Registered Member Join Date: Sep 2001 Posts: 512	idling problems hey guys i have a 1988 gt and recently i have had some problems with it idling right. here are some examples of what happens. when i am driving down the road and stop at a stop sign,light etc. the engine cuts off. another thing it does is when i am driving and stop at a sign it idles at around 2-2300 rpms. and then some times it idles fine. what should i check to try to get this problem ironed out? i have recently put new distriputer cap, rotor, wires, and coil on it.

07-18-2002, 07:14 PM	#2
Hethj7 Mizzou Tigers Join Date: Apr 1999 Location: weston, MO United States Posts: 1,455	I am not sure how the speed density cars are set up, but have you checked your throttle position sensor? If this is not set correctly, idling problems can occur. __________________ 2006 Mustang GT 1990 LX GT-40 motor 262 horsepower, 307ft-lbs (sold but forever loved) 1998 Contour SVT Rice Haters Club Member #244

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Idling Problems	1995gtStang	Windsor Power	1	07-19-2003 12:02 AM
More idling problems.	Chris_H	Windsor Power	3	06-05-2002 04:39 PM
Help! Idling problems when warm	kevknotch88	Windsor Power	7	01-27-2002 02:24 PM
surging and idling problems	LXStallion	Windsor Power	1	04-29-2001 12:27 AM
idling problems	waldoo28	Modular Madness	0	01-13-2001 01:28 PM

07-18-2002, 09:37 PM	#3
86 Grand Marqui Registered Member Join Date: Jun 2002 Location: Dover, Delaware...Ft.Pierce, Florida...Hiawassee, Georgia...Las Vegas, Nevada. Posts: 90	Possible TPS problem. Not sure with those symptoms.I know there is a big general problem with V-8 fords of the Mid and Late 80's, possibly into the 90's, not sure.That problem is; "When you start the car,whether it's warm or not, the Engine will "flash"to 2,500 or so and then back to a normal type idle".Mine does it. I have checked vacuum, so that's not it.I have set my TPS from .7--1.4 volts. It doesn't change the problem with my engine.I have it set at .98 V at this time which is the number I hear and read is best.Sorry, I can't helpya.