CHECK YOUR OIL LEVEL< SOUNDS LOW>
If clicking while trying to start then might be a bad starter. If clicking while running, then might be valve/lifter noise.
Remove valve covers. Install some oil splash shields on the rocker arms. With the engine running back off the rocker arm nut until you hear it start clicking. Slowly tighten the nut just until the clicking stops. Now turn 1/2 to 3/4 of a turn. Do that to all 16. That's it. This is provided you are running a hydraulic cam and lifters.
if your car has air con on it while the engine is running it will be the aircon pump switching on and off hope this helps you out nate
The converter is clogged or the engine is running way to rich or has a misfire.
SOUNDS LIKE YOU MAY HAVE A SHORT IN YOUR PLUG WIRES
A clicking noise in the engine of a 91 Ranger could indicate a problem with the valves. A valve lifter in the engine may be worn or stuck.
what is the running mate in engine
what is the running mate in engine
Location of clicking sound not stated but: My 95 S-10, 4.3L engine was clicking when it was running. Turned out to be the fan tapping against the fan shroud, motor mounts were wearing, causing fan to hit this shroud. This may be your problem but you didn't state what area of vehicle sound comes from.
Check your oil level first, could be low on oil and causing your valvetrain to clatter a bit... (not a good thing at all)
There is coolant in the engine block when the engine is not running. The engine block, heater, hoses and radiator remain full when engine is not running.
Where is the clicking coming from? Within the engine compartment or inside the car?