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#1 |
Registered User
Join Date: Feb 2008
Location: Grande Prairie Alberta
Posts: 261
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last night i started my truck and for 10 seconds it ran fine but after it started to slow rpm drop till it died. i tried starting it again and even after holding the pedal to the floor it wouldnt start. i let it sit for about half an hour, tried again and it barely started with the pedal floored and i had to keep my foot on the pedal or it would die and it ran horribly. this morning i started it and the same thing. first thing i checked was the coil (i had problems with it a few months back) when i pulled the wires for the 7 and 2 cylinder they had a green powder on them and a dull color, the rest where shiney and clean. i cleaned them up a bit and now the engine runs fine, but im not sure this would cause the problems i had.
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eh ![]() 1970 Chevy C20 daily driver ![]() 1975 GMC Jimmy 4x4 project ![]() 1966 GMC C10 Dad's project ![]() Last edited by Camper Power; 10-04-2008 at 02:13 PM. |
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#2 |
Registered User
Join Date: Sep 2007
Location: Grand Forks ND
Posts: 434
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Re: im stumped
My guess would be the float in the carb
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"Beer is proof that God loves us and wants us to be happy" Ben Franklin ![]() 67 Chevy 1/2 lwb, 67 GMC 1/2 lwb (parts) Last edited by bhoeger70; 10-04-2008 at 06:55 PM. |
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#3 |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: im stumped
Could also be clogged filters. My 68 had been running smooth as a swiss clock until day before yesterday. I was going down the road and all of a sudden the sucker acted as if it was out of gas (I had just filled it up).
Stomp on the gas and nothing! I let it coast to a stop and it fired up again. First thing I suspected was clogged filters or carb. I checked the carb filter and it was fairly clean. I have a metal filter under the cab between the tank and fuel pump. But I didn't have a way to bypass that one. I found that if I ran it a very low speed- about 10-15 mph- I could go for about a mile or two before dying on me... Took me 30 minutes to go 10 miles... ![]() Long story short, the metal filter was plugged up pretty bad and just letting gas trickle to the carb. |
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#4 |
1969 Short, Fleet, and Beat
Join Date: Apr 2007
Location: Long Beach, Ca.
Posts: 867
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Re: im stumped
dirty needle and seat my guess.
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#5 |
Registered User
Join Date: Apr 2007
Location: Kelso, WA
Posts: 363
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Re: im stumped
all of those seem to be liable to cause a problem I was having the same issue a few months ago. Turned out I was getting a lot of junk out of the tank clogging the in-line fuel filter, fixed that issue and had a carb problem. floats were sticking, i believe there was a piece of gunk stuck in between the needle and seat as well...
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1972 K10 4" lift, 35’s, 383 stroker, 700r4, current project. 1971 C10 3"/5" static drop, 355/350. "La Bamba.” The current daily driver. |
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