Hey guys whats up so after building my top end on my truck and driving it for about 2 day i started to notice it will not hold a idle when up 2 temperature what could be causing this? I let it idle on its own lasted about 30second and died it will start up right away but just wont hold a idle when up to temperature any ideas or help will be great thx agen

 

@litneon yes i have didint find any but still went ahead and replaced all the lines one buy one

 

I've had issues with my anti-diesel solenoid either losing power or ground....

I seem to b the only one I guess, since I've responded to a lot of "wont idle" threads.... and never heard back.

 

Just "weird" that its happened to both of the carb'd toyota trucks I've owned.. an '81 and now my '86.

Rigged em both, lol.

I think it has to do with messed up solder joints in the "emissions control unit".

DAMN EMISSIONS!

 

Mine did that once. I replaced the anti-diesel solenoid, not a problem since. You said you built your top end, did that include your carb too? Carb could be an issue if so? I'm just guessing.

 

@YOguyDA were is that located?
@Egadabasetone its rebuild but not recently

 

There should be a green plug hanging down between the carb and your battery. It has 4 wires going to the carb. One is for your choke, two are for the solenoid and one is for your float bowl vent.

If you trace them up to the carb, you'll find it. Red and black wire for the solenoid.

 

I'd have to look at my manual to get the specs, but the easy way to test it is to cut a piece of insulation out of both wires and while its running, take a spare jumper wire and go + to red and then try - to black.

If it doesn't make it run any better, that's probably not your problem.....unless the solenoid/ o-ring is bad itself.

 

My solenoid was good in both trucks... but one truck the ground was bad and the other truck wasn't getting power....

Causing my no idle problems.