| 1974 sequoia [the Mo Hoe] [message #226764] |
Wed, 23 October 2013 18:08  |
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Husker92592
Messages: 137
Registered: August 2013
Location: Temecula ca
Karma: -4
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Folks, I meet some help. Last weekend my clay was runnin now it is not. I replaced the rear fuel sending unit dropped the tank replaced the line tha runs up the frame rail and now I candrive 40 ft ant the I have to restart crank and go another 49 feet. My front tank was registering on the switch and I finally got my rear tank sending unit to work now the it when I switch the tanks the new sending unit goes to full ( short to ground?) and the gent tanks doesn't register and gtl no fuel. The coach acts like it is vapor locking, kinda hard when still cold. And it seems I get to drain the tanks and start over. Could the solo kid tank selector cause this? Does anyone have a fuel routing diagram?
Thanks
Grant
1974 GMC Sequoia 26'
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| Re: 1974 sequoia [the Mo Hoe] [message #226770 is a reply to message #226764] |
Wed, 23 October 2013 18:49  |
cbryan
Messages: 451
Registered: May 2012
Location: Ennis, Texas
Karma: 3
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Senior Member |
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Grant,
I think one easy thing you could try is to get a pair of long nose vise grip pliers or something else that can clamp and clamp off one of the fuel lines going to what tank you most suspect and see if you aren't pulling air through it and a defective solenoid assembly. If it drives, you might have a split fuel hose to the bad tank, broken pickup assembly, cracked line, goofy fuel hose hookup to the vent instead of the pickup. If it doesn't, clamp off the other one. If it drives, consider replacing that assembly that switches tanks and see to the tank you clamped off. I got a mile or so out of this procedure due to pickups up off the floor of the tanks about two inches. Driving like a NASCAR driver running out of gas back in the day swerving like a maniac almost got me to a gas station, gas sloshing enough to submerge the gas pickup. In the Mojave desert. (With no legal plates, too.) Like Howard says, All is well with my Lord. I wasn't sure it wasn't ignition. In a way it was ignition, because in my EFI setup, without fuel pressure, ignition shuts off. Hard way to learn, during a hard time to think, with a sprained ankle hopping about.
I love the GMC all the more.
Carey from Ennis, Texas
78 Royale, 500 Cadillac, Rance Baxter EFI.
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| Re: 1974 sequoia [the Mo Hoe] [message #227007 is a reply to message #226764] |
Fri, 25 October 2013 11:14 |
habbyguy
Messages: 896
Registered: May 2012
Location: Mesa, AZ
Karma: 3
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Senior Member |
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One other thing I'd add (that I don't believe has been mentioned in this thread yet) is that the condition of your frame-to-body rubber pads can have an effect on the fuel/vent lines. Apparently the designed clearances between the fuel tanks (which hang off the frame) and body (which sits on top of the rubber spacers, which sit on top of the frame) are very small. I've read that when these rubber spacers compress over time, the fuel and/or vent lines can get smooshed. I know that my beloved PO replaced all these rubber spacers, and that - after replacing all my fuel and vent lines - I can fill up my Royale as fast as the gas pump will dispense the gas.
Mark Hickey
Mesa, AZ
1978 Royale Center Kitchen
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