Some help please. My add coolant warning light on my 92 FD3S keeps coming on at random intervals for approx 30 secs and then going off. It will then come back on a few min later. Has anyone experienced this or have any ideas??? Temp is running fine.

 

I had this, and my coolant seals were toast.

Start by checking your coolant level in the filler neck pictured below:



Top it off as needed. If the problem persists, I would have the coolant system tested for Hydrocarbons. Most garages should be able to do the test for a reasonable price.

 

I suggest you add coolant. I had that problem at one point. Before I knew it, I had a blown motor How many miles are on your motor?

 

check if theres air in your radiator....
check if you have any leaks
and do it quick be4 you fry your motor

con

 

yeah i jst replaced my radiator.. filled it up.. turned it on let it run till it warms up.. then wait till it cools a bit open the cap shown above and fill it again .. . light should go away.. mostlikely air in there..

 

Engines only done 50k so i'm hopin its just air!!! Will check it out and let everyone know how it goes!!!! Thnaks for the help!

 

also check the warning sensor wiring. its somewhere under the intake elbowish, near that clump of hoses wires etc if its wiggling loose, it will beep.