My engine started making a clicking sound and when on the highway the oil pressure gauge stays up but when at stop sign goes all the way down
First check your oil level. Also change the oil and filter but if that does not fix it then you have a serious problem. Don't drive it until it is fixed as you may seize your engine. It may be a worn oil pump or worn engine.
Agreed w/ FoR... I had the same thing happen on my Ford Explorer... a piece of the oil pick up tube had broken off in the oil pan and was blocking the pick up tube... it was randomly intermittent... until it finally got stuck and starved oil to my motor. Couldn't shut it down fast enough and the motor seized.
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