Question about 1991 GMC C1500
I'm replacing the motor in a 1991 GMC 1500. If I use the existing TBI intake, what year model 5.7 engines will "bolt in" with minimal wiring issues?
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
There is an updated resistor/connector package. Very expensive from GM, try your local NAPA or other parts supplier for a replacement
Posted on Jul 09, 2009
THE INJECTORS ARE PULSED TO GROUND DIRECTLY BY THE ECM...... MAIN COMPUTER... IT COULD BE FLAKY BUT I HAVE FOUND MANY TIMES THAT THE HALL EFFECT SENSOR LOCATED IN THE TOP OF THE DISTRIBITOR GETS INTERMITTANT.... THIS CAUSES LOSS OF SIGNAL TO ECM INTURN LOSS OF SIGNAL OUT OF ECM TO INJECTORS... LET ME KNOW
Posted on Sep 01, 2009
The blower motor is on the passengers side under the dash.You might have to remove the a lower panel.This is the insulator panel.If the blower works at all just turn it on and follow the noise.Hope this helps.Good luck.
Posted on Apr 08, 2010
I had to change the blower motor, turns out the spring tension on the brushes on the motor were too tight and ate into the brass commutator of my old motor.
Posted on Sep 17, 2010
Tips for a great answer:
Jan 17, 2015 | 1991 GMC Sierra
Nov 06, 2014 | Cars & Trucks
Jul 11, 2013 | 1990 Subaru Loyale
May 07, 2011 | 1991 GMC Sierra
Jan 23, 2011 | GMC Sierra 1500 Cars & Trucks
Jan 22, 2011 | 2006 GMC Sierra
Jan 22, 2011 | 1996 GMC Sierra
Jun 10, 2010 | 1991 GMC Sonoma
Feb 05, 2010 | 1991 Toyota 4Runner
Jan 15, 2009 | 1991 GMC K2500
Feb 17, 2020 | Cars & Trucks
Feb 17, 2020 | Ford Cars & Trucks
32 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: