my 1987 S10 chevy blazer wont start I suspect it may be the fuel pump relay but where can I locate it?
Apr 15, 2006 at 8:29 AM
1987 Chevy S10 Blazer No Start Fuel Relay
GMC
VAL
- MEMBER
- 1 POST
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The relay is located on the fire wall. It's only purpose is to prime the fuel system for 3-9 seconds. The circuit goes through the oil pressure sw and then to the pump. Look for a green connector that is not plugged in. apply 12v power and if the fuel pump runs it isolates the pump. Make sure you have checked all the fuses.
Apr 15, 2006 at 10:58 AM
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Suggested Repair
Locate the fuel pump relay on the firewall. It only primes the system for 3-9 seconds; power then goes through the oil pressure switch to the pump. Check all fuses, find the unplugged green connector, and apply 12V. If the pump runs, the pump itself is confirmed working.
Conversation Summary
The owner of a 1987 Chevy S10 Blazer that will not start suspects the fuel pump relay and asks where it is located. The expert says the relay is on the firewall and only primes the fuel system briefly, with the circuit continuing through the oil pressure switch to the pump. They advise checking all fuses and applying 12V to an unplugged green connector to see whether the pump runs.