Hi All,
I have an 80 with a 4.2 1HD-T engine. The idle speed when hot is too high. I've traced the fault to what appears to be the cold start solenoid. This is connected to the engine water cooling system. It has a piston that pushes against spring and lever that moves the injector pump arm to increase the idle speed/and injection, when the engine is cold. The trouble is, mine doesn't change positon when hot, ie the piston should extend ?. Has any one knowledge of this problem?, or experienced the same?
(I have done a search can't find any previous posts on this topic)
Thanks
Rob ???
I have an 80 with a 4.2 1HD-T engine. The idle speed when hot is too high. I've traced the fault to what appears to be the cold start solenoid. This is connected to the engine water cooling system. It has a piston that pushes against spring and lever that moves the injector pump arm to increase the idle speed/and injection, when the engine is cold. The trouble is, mine doesn't change positon when hot, ie the piston should extend ?. Has any one knowledge of this problem?, or experienced the same?
(I have done a search can't find any previous posts on this topic)
Thanks
Rob ???
