'87 Fuel Pump Relay???
Thread Starter
Intermediate
Joined: Aug 2008
Posts: 43
Likes: 0
From: Saskatoon SK
'87 Fuel Pump Relay???
If the fuel pump relay is unplugged, should the car run at all? Is dielectric grease very important in this plug? The car will start, but won't idle, the only way to keep it running is to keep my foot on the gas, whether the fuel pump relay is plugged in or not. Any idea what the problem could be?
Le Mans Master
Joined: Jul 2007
Posts: 5,043
Likes: 8
From: Tampa Florida
Your car need the FP relay to start the car...once the car is running you oil pressure switch (if it works properly) will keep the FP running....so yes you can remove the FP relay after the car is running and the fuel pump will continue to run as long as the oil pressure switch is closed.
Using the dielectric grease on connections helps ensure electrical continuity and oxidation/corosion is minimized.
Car won't idle could be a # of things.....
Check your car for codes when's the last time you did a tune up? Check or change the air filter...cap...rotor..plug wires...plugs.....clean the TB....check exaust back pressure for clogged CATs. Have your ICM tested....IAC could be dirty or plugged. Do a through fuel pressure check too.
Using the dielectric grease on connections helps ensure electrical continuity and oxidation/corosion is minimized.
Car won't idle could be a # of things.....
Check your car for codes when's the last time you did a tune up? Check or change the air filter...cap...rotor..plug wires...plugs.....clean the TB....check exaust back pressure for clogged CATs. Have your ICM tested....IAC could be dirty or plugged. Do a through fuel pressure check too.
Pro
Joined: Feb 2005
Posts: 560
Likes: 0
From: Hamilton New Jersey
Car will start and run without it if the oil pressure switch works. If your fuel pump relay is shot expect extended cranking time as the pump will not run until it sees pressure from cranking at the oil pressure switch. I'd look elsewhere for your problem.
Safety Car
Joined: Jul 2008
Posts: 3,966
Likes: 4
From: Made In America
St. Jude Donor '10-'11
Your car need the FP relay to start the car...once the car is running you oil pressure switch (if it works properly) will keep the FP running....so yes you can remove the FP relay after the car is running and the fuel pump will continue to run as long as the oil pressure switch is closed.
Using the dielectric grease on connections helps ensure electrical continuity and oxidation/corosion is minimized.
Car won't idle could be a # of things.....
Check your car for codes when's the last time you did a tune up? Check or change the air filter...cap...rotor..plug wires...plugs.....clean the TB....check exaust back pressure for clogged CATs. Have your ICM tested....IAC could be dirty or plugged. Do a through fuel pressure check too.
Using the dielectric grease on connections helps ensure electrical continuity and oxidation/corosion is minimized.
Car won't idle could be a # of things.....
Check your car for codes when's the last time you did a tune up? Check or change the air filter...cap...rotor..plug wires...plugs.....clean the TB....check exaust back pressure for clogged CATs. Have your ICM tested....IAC could be dirty or plugged. Do a through fuel pressure check too.
with this gentlemans entire post. All those can contribute to a bad idle.
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