1989 corvette problem help
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
1st Gear
Joined: Aug 2014
Posts: 1
Likes: 0
I am having problems with my 1989 l98 vette the fuel pump is staying running and pulling the fire out of the battery I un plugged the fuel pump relay on the firewall and it still runs is there any other relay that I should check
Drifting
Joined: Feb 2008
Posts: 1,537
Likes: 178
From: NE Ohio
2024 C4 of the Year Finalist - Unmodified
dude, CHILL. today, a $20 part, tomorrow a $200 part - ??? all i said was to preform a simple fuel pressure check. damn, the engine is 23 years old - why not just replace that too. no flames, but too many people don't have a clue WTF's wrong, but they know if they replace enough stuff, eventually, they can fix anything. i guess i old school - if it ain't broke, dont fix it! i've wasted enough time on this thread -
Drifting
Joined: Jun 2013
Posts: 1,590
Likes: 60
From: ft myers FL/Munising MI
could check the connections in the fuel pump....if you have a pulsator too, fuel line could be popping out when pump turns on....you'll lose pressure fast...it will reconnect when pump shuts off........a guage on your rail will tell you....it's what you need to do first....
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
The oil pressure switch is the part with the orange and red wires:
I'm not positive, but it's possible that you have the combination oil pressure switch and oil pressure sender. The combination switch/sender came into use around 1989. In that case it would be in the same area (back of engine behind distributor) with a connector with 3 wires. Unplug the connector.
