Is the Check Engine light no longer on?
By the time we could get it to the mechanic, the check engine light was no longer on and of course the mechanic could not get it to duplicate the problem. yellow wrench light comes on which the book says is engine throttle body. Its about a $560 repair which i dont have
Why does the wrench light go off after starting the car?
It does it more freequently when the engine is hot from driving around (like running errands and backing in and out of parking spaces) Once, we got the wrench light, but it went off after re-starting the car. Once the car went into “limp home mode” but again, after turning it off, letting it cool, and starting it again, it was back to normal.
What causes the Check Engine light to turn off at idle?
At idle, the ECM will not get the correct information and the throttle will variate randomly causing idle surges. The check engine light will randomly turn on and off even if the car is running smoothly without any jerks and stalling.
What does the yellow wrench light on a Ford truck mean?
What does the Yellow Wrench Light Mean? The wrench light in the Ford F-Series trucks is very similar to a check engine light. When the wrench light comes on the vehicle may go automatically into limp mode, which limits the capabilities of the engine and transmission in order to reduce mechanical stress on the possible failing components.
What to look for when your wrench light is on?
When checking the PCM, look for problems with the wiring and connectors. The wires should be fully insulated without breaks. The connectors should be clean with no bent pins or connector blades. Check for water damage. If water has gotten into your PCM it can short circuit or set up irreversible corrosion.
By the time we could get it to the mechanic, the check engine light was no longer on and of course the mechanic could not get it to duplicate the problem. yellow wrench light comes on which the book says is engine throttle body. Its about a $560 repair which i dont have
It does it more freequently when the engine is hot from driving around (like running errands and backing in and out of parking spaces) Once, we got the wrench light, but it went off after re-starting the car. Once the car went into “limp home mode” but again, after turning it off, letting it cool, and starting it again, it was back to normal.