86 GMC won't start sometimes!

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Gpaw44

Junior Member
Joined
Apr 3, 2016
Posts
10
Reaction score
1
Location
Texas
First Name
Alex
Truck Year
1986
Truck Model
1500
Engine Size
305
I have an 86 GMC with a 305 auto. that start sometime and then it won't start. Engine turns over fine. It would not start a week ago so I just let it sit and a couple of days ago it started right and continued to start for couple of days. Yesterday it would not start. All ground cables are clean. It acts as if it is flooding but opening choke plate in the carb it still will not start. If the oil sending unit is going bad will that not allow the engine to start? Thanks for any suggestion.
 

Snoots

Full Access Member
Joined
Jan 23, 2013
Posts
8,753
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18,201
Location
Georgia
First Name
Roger
Truck Year
1973
Truck Model
Jimmy Sierra
Engine Size
350 w/203
Only if you have an electric fuel pump.
 

Poppy 87

Full Access Member
Joined
Oct 19, 2019
Posts
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Location
Bloomingdale GA
First Name
John
Truck Year
1987
Truck Model
R10 Silverado
Engine Size
305
Check for fuel, fire (ignition), and compression in that order
 

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