I've had problems with my truck's idle surging when at a full stop. It idles at 1000rpm for about 5 secs then goes to 1200rpm for about 2 secs then back down, etc, etc. It seems to be an intermitent problem but it mainly happens in cold weather. One thing I noticed last night is that the idle surges happens when I stop and have the brake pedal depressed, as soon as I let go of the brakes, rpm's go up to about 1500 rpm and the surging between 1-1.2K rpms stops. Could it be a vacuum problem in the break booster?
Truck: 92 xtra cab, 22re, 4x4, 190,000 miles
Thanks in advance,
Meatloaf
Truck: 92 xtra cab, 22re, 4x4, 190,000 miles
Thanks in advance,
Meatloaf