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jim, ASE Certified Technician
Category: Jeep
Satisfied Customers: 1317
Experience:  ASE A6,A8,L1 and California Licensed Smog Technician
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93 jeep wrangler: change fuel..fuel pump relay..relay fuse..relay box

Resolved Question:

93 jeep wrangler no power to fuel pump change fuel pump relay fuse check power on relay box have power fuse all good no power at tank use switch to pull code its show#36
Submitted: 5 years ago.
Category: Jeep
Expert:  jim replied 5 years ago.

jim :

What size motor is in the vehicle?

Customer: replied 5 years ago.
4 c manual no air
Expert:  jim replied 5 years ago.

First thing to do is the following to check for an open wire.

Check for B+ on two terminals at the fuel pump with the key on.

If OK, jumper the fuel pump relay terminals 30 and 87. This will send power back to the fuel pump all the time.

Test the circuit going back to the fuel pump to find the open.

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