Red Engine Light
Thread Starter
|
New User
Joined: Apr 2008
Posts: 5
Likes: 0
Red Engine Light
I had my 1991 7.3L F-250 4X4 detailed yesterday. The engine was cleaned. Went for a drive last night, the red engine light came on immediately, and the Water temp gauge was pegged full Hot from the time I started it. The engine is definitely not overheating, runs great, blah, blah, blah. Any ideas on where to start? Where is the sending unit/units for water temp. Thanks.
Senior User
Joined: Jan 2007
Posts: 186
Likes: 1
From: watford, ontario
sounds like ur temp sensor is grounding or shorting out doo to the moisture u may have all ready guessed that thou im not sure where the sensor is but gona take a guess and say its on the intake manifold id just pull the plug off and blow the water out with blow gun and try that
Lead Driver
Joined: Nov 2002
Posts: 9,555
Likes: 40
From: Concord, NC
Yes, the engine light comes on to alert you to the "overheating" condition. As the others have said, your temp sender wire is shorted to ground somewhere between the dash and the sender in the engine. Don't let it go too long like this, otherwise the gauge itself could be damaged.
Senior User
Joined: Dec 2007
Posts: 199
Likes: 2
You still have a problem in a damaged wire somewhere. You should at least find the temp sender and hand over hand trace the wiring back to the firewall. You might find a wire bundle that has rubbed through on something. This could leave you walking someday.
