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LarC's power loss/stalling problem [message #55182] Tue, 01 September 2009 21:04 Go to previous message
midlf is currently offline  midlf   United States
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma:
Senior Member
LarC was working on his HVAC system when:


Larry C wrote on Tue, 01 September 2009 13:48

THANK YOU everyone for your help and ideas.

This project just died as of the moment I tried to drive the GMC home and the problem I tried to solve for the last two years, power loss, this time at 30 mph and now stalling, has returned.

This problem showed its ugly face when the tanks were dropped to replace the rubber hoses. It went away, briefly after replacing the fuel pump, carburetor, distributor to electronic, checking fuel flows, and I forget what else has been done....

This is very discouraging for me and as for my trust in driving her, this has just tanked also.

The project now is to find this problem so I can use the coach someday.

Again, thanks for the ideas, I have saved them. Sorry to have brought up an old topic again. Thank you for entertaining my thoughts.



Gatsbys' CRUISER Very Happy




LarC - this may be somewhat controversial to some but here is how I would pursue this problem if it was mine. I would remove the rubber fuel line from the engine driven fuel pump and plug it. I would then get an appropriate length of fuel line and attach it to the pump running it into the coach. Attach this line so it cannot get burned, move or become entangled in moving parts. Get a tank to mount in the coach interior, an outboard gas tank would be ideal but so would a 5 gal gas can, just don't fill it over 4 gallons, make sure it is well secured and will not move or spill. Go for a run that would normally cause the power problem to rear it's ugly head and see if it occurs, if the problem does not show up the problem is somewhere in the fuel system up to the pump. If the problem does turn up, it is not a fuel delivery problem from the tanks. This will narrow down the areas to search. I'm betting on the tanks because of the number of items you have done so far. My bet, rust in the tanks clogging the pickup screen.


Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
 
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