The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Intermittent power loss (need help troubleshooting please)

Andy4639 · 01-06-2019, 08:13 PM

First thing is check the wire to the cap for the coil. That is a later model HEI distributor it needs 12 volts all the time to work properly. These truck came with a resistor wire in the harness to cut down the voltage to 9 volts at start and while running. If it's the factory wiring hooked to it then that is your main problem.

01-06-2019, 08:13 PM	#2
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,936	Re: Intermittent power loss (need help troubleshooting please) First thing is check the wire to the cap for the coil. That is a later model HEI distributor it needs 12 volts all the time to work properly. These truck came with a resistor wire in the harness to cut down the voltage to 9 volts at start and while running. If it's the factory wiring hooked to it then that is your main problem. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.