Trip report, or "Didn't Get Far

[dave1]

>Loaded up 8 basketball fans and headed out ... but it=20
>clearly is fuel starvation.=20

This is probably a long shot on a GMC (since the fuel system has a tenancy
to leak) but maybe you are not getting enough air in the fuel tanks. When
the fuel pump sucks gas out of the tank, air has to enter the tank to
replace the fuel. Sometimes there is a blockage the air source (the
charcoal canister, vapor line and/or fuel/vapor separator) that will allow
a vacuum to build up in the fuel system. Its an easy thing to check for. Go
for a drive and when you start having fuel starvation problems, loosen up
the gas cap. If you hear a woosh of air and the engine starts running OK
then check the vapor recovery system.

Dave
Ann Arbor, MI.
73 Sequoia (26'/455/EFI/HEI/160=B0)

 

[rob teed]

"it clearly is fuel starvation"
Is it!
My coach would get about a mile from home running
good then stall out...Seemed like it wasn't getting fuel
so I took the air breather off...I got it started again
and drove a halk block.it started boiling fuel out the
top of the carb...it took me all morning to drive cross
town like this...got it to a garage...they did a quick
carb rebuild I drove it from Michigan to Florida and
back plus a few trips in Michigan. No problem....
I say get the carb rebuilt!!
Rob Teed 74 Painted desert

> -----Original Message-----
> From: owner-gmcmotorhome
> [mailtowner-gmcmotorhome]On Behalf Of
> LNelson208
> Sent: Thursday, December 09, 1999 7:47 AM
> To: gmcmotorhome
> Subject: GMC: Trip report, or "Didn't Get Far"
>
>
> Loaded up 8 basketball fans and headed out to Fayetteville AR
> (120 miles).
> Not a lot of extra time in the plan. First trip since new wires,
> new mech.
> fuel pump, new fuel/air seperator..........She started getting
> "fuel starved"
> about 5 miles down the road. Limped back home, loaded everyone
> but the dog in
> the Suburban (dog was very mad). Got to the game in good time at
> 70 mph. Have
> not had time to diagnose, but it clearly is fuel starvation. Just have to
> find out, What Giffs. Larry in MO, PB75
>

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