My 1994 Mercury Van stalls when the ambient
air temp.gets to 95-100F.The cooling system
runs normal temp.The check engine light comes on and it will idle but won’t rev up
Whats wrong?After it cools down it runs fine.
The check engine light tells you that the engine computer has set a diagnostic trouble code. Your mechanic can pull that code, and use that information to troubleshoot the problem (if he’s capable, of course).