84CUCV
3/4 ton status
switching valve might be bad. so how do i check it out? thanks 
Last edited:
CK5
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switching valve for duel tanks, how to test it Update one more ???
- Thread starter 84CUCV
- Start date
az-k5
1/2 ton status
84CUCV said:switching valve might be bad. so how do i check it out? thanks
What year truck? FI trucks use a slightly different set up than carb'd.
Check the switch in the dash first. It is a double pole double throw. Pull it out and make sure all of the 4 prongs do something. I had one dead pole on mine.
84CUCV
3/4 ton status
its a 87 350, if its not the switch, how else do i check it? thanks
burban1500
Registered Member
84cucv-will u part out that beater blazer?i want the rear
84CUCV
3/4 ton status
i might part it out. i will be keeping that. sorry...
If your looking i was told blewetts has a bunch of axles, even 1 tons. it sucks tho they pull it, not you. www.johnblewett.com
later
If your looking i was told blewetts has a bunch of axles, even 1 tons. it sucks tho they pull it, not you. www.johnblewett.com
later
84CUCV
3/4 ton status
found it the # there is 732.938.5331
84CUCV
3/4 ton status
anyone else??
dunno if this will help....
I did this in mspaint so enjoy my madd skillz....
this is how my 78 with dual tanks is wired....
also side note... I think all the switch does is give power to the post on the unit...
so if you take the part out... and ground it to the battery then hit positive it should click...
someone please confirm first.. we dont need anyone blowing themselves up...
I did this in mspaint so enjoy my madd skillz....
this is how my 78 with dual tanks is wired....
also side note... I think all the switch does is give power to the post on the unit...
so if you take the part out... and ground it to the battery then hit positive it should click...
someone please confirm first.. we dont need anyone blowing themselves up...
mine is wired the same as RootBreaker's
is it not switching at all? try switching the tanks with the key on and the motor off and see if it makes any noise. mine is pretty noisy and you can hear it switching when the engine is not running.
is it not switching at all? try switching the tanks with the key on and the motor off and see if it makes any noise. mine is pretty noisy and you can hear it switching when the engine is not running.
84CUCV
3/4 ton status
OK thanks guys got a good place to start now.
84CUCV
3/4 ton status
do both tanks need to be hooked up for the system to work or can i just run it off one side? hope i can. that would be great need to be able to move it around. thanks
84CUCV
3/4 ton status
OK i now know i can run it with one tank. i checked the wires for power. i was only getting 8v. it should be closer to 12v right? or am i wrong? thanks for the help
84CUCV said:
well shove the 12v to it to see if that does it...
84CUCV
3/4 ton status
OK will see how it goes
