Welcome Visitor! Please take a few seconds and The Fox
Well-Known Member
- Joined
- Oct 31, 2008
- Messages
- 139
- Vehicle Year
- 1988
- Transmission
- Manual
Hello everyone, just had a question that I would like to have answered.
Here goes, my truck has the 2.9L with a strange problem. It runs just fine and starts perfectly, but at idle it stumbles and shakes a lot. It has a constant RPM of 1000 at idle when warm, but it shake around without the engine RPM dropping. It also does it when I hold the throttle with the clutch depressed just a little faster and less violent.
It has had new wires, plugs, cap and rotor less the 1000 miles ago, it also has a new fuel filter/air filter at the same time. I also have the problem that it will rhythmically rev up and down until it either dies or recovers with a bump up in RPM and runs normally. I got it to work better when I and my auto teacher in high school (I bough the truck from him) cleaned the throttle body while the engine was running with cleaner, but it has gone back to the way it was.
The truck has 150,000 miles on it. My auto teacher replaced the heads with aftermarket ones at 107,000 miles 12 years ago because someone who brought it to his shop and sold it to him because of the work. He owned an engine shop and took the motor out and rebuilt it, honed the cylinders, new pistons, clean it all up and the link and drove it for those 12 years as a shop truck to move engines around.
Let me know of any thing else you would like to know. I also appreciate the help.
Thanks
Nick
Here goes, my truck has the 2.9L with a strange problem. It runs just fine and starts perfectly, but at idle it stumbles and shakes a lot. It has a constant RPM of 1000 at idle when warm, but it shake around without the engine RPM dropping. It also does it when I hold the throttle with the clutch depressed just a little faster and less violent.
It has had new wires, plugs, cap and rotor less the 1000 miles ago, it also has a new fuel filter/air filter at the same time. I also have the problem that it will rhythmically rev up and down until it either dies or recovers with a bump up in RPM and runs normally. I got it to work better when I and my auto teacher in high school (I bough the truck from him) cleaned the throttle body while the engine was running with cleaner, but it has gone back to the way it was.
The truck has 150,000 miles on it. My auto teacher replaced the heads with aftermarket ones at 107,000 miles 12 years ago because someone who brought it to his shop and sold it to him because of the work. He owned an engine shop and took the motor out and rebuilt it, honed the cylinders, new pistons, clean it all up and the link and drove it for those 12 years as a shop truck to move engines around.
Let me know of any thing else you would like to know. I also appreciate the help.
Thanks
Nick
), and is really the only way to see problems with fuel pressure.
