WONT START

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

4WDKC

Full Access Member
Joined
Jan 27, 2016
Posts
2,366
Reaction score
1,090
Location
Southern Florida
First Name
Kacy
Truck Year
1987
Truck Model
V10
Engine Size
350
Here is your sending unit
You must be registered for see images attach


that silver thing in the middle is the check valve that prevents fuel from entering the evap line to the canister. If that is removed you could have the issue you are describing. If someone tried to bypass the tank switching valve they may have plumber the return line to the evap line on accident, possibly?

My truck was pushing fuel out the top of the sending unit and it wasnt going to the canister. Youre going to need a manual and have to get onder the truck to figure this out.
 
Joined
Jun 26, 2019
Posts
37
Reaction score
4
Location
San Angelo
First Name
Steven
Truck Year
1987
Truck Model
sierra classic 1500
Engine Size
5.7 350
Something is very wrong... do you have a dual tank truck? Can you use both tanks? Did someone try to bypass the switch valve?
Yes it does and the person I bought it from said, the switch wasn't working so they only set it up to use the drivers side tank and put a new fuel pump in too
 
Joined
Jun 26, 2019
Posts
37
Reaction score
4
Location
San Angelo
First Name
Steven
Truck Year
1987
Truck Model
sierra classic 1500
Engine Size
5.7 350
Here is your sending unit
You must be registered for see images attach


that silver thing in the middle is the check valve that prevents fuel from entering the evap line to the canister. If that is removed you could have the issue you are describing. If someone tried to bypass the tank switching valve they may have plumber the return line to the evap line on accident, possibly?

My truck was pushing fuel out the top of the sending unit and it wasnt going to the canister. Youre going to need a manual and have to get onder the truck to figure this out.
I'll look exactly how they did it exactly
 

gotyourgoat

Full Access Member
Joined
Mar 27, 2014
Posts
2,117
Reaction score
3,417
Location
NRV Virginia
First Name
gotyourgoat
Truck Year
1984
Truck Model
c10
Engine Size
smokin' 305
Missing some hoses on that canister. what are the ones that are on there actually connected to?
 
Joined
Jun 26, 2019
Posts
37
Reaction score
4
Location
San Angelo
First Name
Steven
Truck Year
1987
Truck Model
sierra classic 1500
Engine Size
5.7 350
(Based on photo ) the one on the top goes to the fuel tank. The bottom goes to the TBI middle one is to atmosphere
 

gotyourgoat

Full Access Member
Joined
Mar 27, 2014
Posts
2,117
Reaction score
3,417
Location
NRV Virginia
First Name
gotyourgoat
Truck Year
1984
Truck Model
c10
Engine Size
smokin' 305
Do you happen to have an air cleaner/ tbi port capped? Because the middle one (that you are atmosphere venting) should be routed there.
 

Latest posts

Forum statistics

Threads
41,851
Posts
903,492
Members
33,365
Latest member
rossivey
Top