- Apr 4, 2009
- 26
- 0
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I realize that there are many posts on this subject, but so far none of them has helped much. Maybe someone can help me out! I have a video below.
I bought a 1994 GT a few years ago from this lady. She sold it because her husband ran off with their horse trainer to the NC mountains, never to be seen again. She said that the engine was built by Holcombe Motorsports in Lumberton, NC. At that time it had about 6000 miles on the new engine and transmission. I drive it around on the weekends. It is like driving an old farm tractor. I am the only person that can drive it. It takes a lot of nursing to get from place to place, without stalling over and over. It has some sort of big cam? Don’t know what! Trick Flow intake, smog pump block off, It has never wanted to idle and sometimes dies, when changing gears, coming to a stop, and running the A/C.
After reading a bunch of posts yesterday, I removed the IAC. Someone put a solid gasket, with no holes, between the IAC and it’s mount. No air could go through, period. After looking at the old dirty IAC, I decided to go and buy an new one. I installed the new one and “awesome” it now idles with or without the A/C and does not stall between gears or coming to a stop.
But, it has serious hanging RPM now and the check engine light is on off, on off, every few minutes. When I shift gears and let off of the gas, instead of the rpms dropping, they shoot up a few hundred rpms and stay there until I let off of the clutch. Once this morning, the rpms stayed at 2000 at a stop light the whole time. A few minutes later in 4th gear, the engine started to surge from 2000 to 1500 rpms, back and forth about 10 times.
Any ideas? This thing is driving me nuts!
Thanks!
Click the little link under the video to go to youtube, if the embedded video does not work.
View: https://www.youtube.com/watch?v=dpKJEf5d5x8
I bought a 1994 GT a few years ago from this lady. She sold it because her husband ran off with their horse trainer to the NC mountains, never to be seen again. She said that the engine was built by Holcombe Motorsports in Lumberton, NC. At that time it had about 6000 miles on the new engine and transmission. I drive it around on the weekends. It is like driving an old farm tractor. I am the only person that can drive it. It takes a lot of nursing to get from place to place, without stalling over and over. It has some sort of big cam? Don’t know what! Trick Flow intake, smog pump block off, It has never wanted to idle and sometimes dies, when changing gears, coming to a stop, and running the A/C.
After reading a bunch of posts yesterday, I removed the IAC. Someone put a solid gasket, with no holes, between the IAC and it’s mount. No air could go through, period. After looking at the old dirty IAC, I decided to go and buy an new one. I installed the new one and “awesome” it now idles with or without the A/C and does not stall between gears or coming to a stop.
But, it has serious hanging RPM now and the check engine light is on off, on off, every few minutes. When I shift gears and let off of the gas, instead of the rpms dropping, they shoot up a few hundred rpms and stay there until I let off of the clutch. Once this morning, the rpms stayed at 2000 at a stop light the whole time. A few minutes later in 4th gear, the engine started to surge from 2000 to 1500 rpms, back and forth about 10 times.
Any ideas? This thing is driving me nuts!
Thanks!
Click the little link under the video to go to youtube, if the embedded video does not work.
View: https://www.youtube.com/watch?v=dpKJEf5d5x8