No power to the fuel pump fuse

KELLYZ

MEMBER
1997 CADILLAC DEVILLE CONCOURS
4.6L
V8
FWD
AUTOMATIC
100,000 MILES

Installed new head gaskets. Got everthing back together it said check fuel system. Installed new fuel pump. I hsve no power at the fuel pump fuse. I did have the PCM unplugged when I removed the engine cradle.

Monday, March 23rd, 2015 AT 9:16 AM

3 Replies

HMAC300

MECHANIC
48,601 POSTS

If you have a different key try that as it may be the diode in it. Then check fuse with a test light as it may be the fuse block not making good contact causing problem.

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Monday, March 23rd, 2015 AT 9:33 AM

KELLYZ

MEMBER
4 POSTS

The key didn't work. I don't know where the power comes from to go to the fuse. I have no power to the fuse. Is there another fuse somewhere?

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Monday, March 23rd, 2015 AT 2:29 PM

HMAC300

MECHANIC
48,601 POSTS

Check items in right fuse box underhood. It may be the maxi fuse or ignition relay not good you can replace relay with a like relay or go to repair electrical how to test a relay on our site here. The fuse is a larger one that is 40amp see pic

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