Fj60 won't idle! (1 Viewer)

[Burtoffce]

Hi, I’m having trouble with my fj60 it has the original 2f with only 82k on it! My truck starts but won't idle to save its life, if I keep the throttle above 1500rpms it runs and drives great but If I take my foot off the gas its over. Also when I off-road if I go up or down a steep incline or just take on a huge rut the truck will stop responding to throttle after about 2 mins and just die. If I just wait like 5 mins though it starts up and I take off all the way home as long as the road isn't too bad. I assume it’s a vacuum issue I don't even understand how a N/A car from 1983 even has a vacuum system for anyway? Emissions I assume anyone have a guide with pictures on how to desmog I didn't see on in the tech section?

I guess I should mention that this truck is totally stock with very low miles and little use the last few years.
Thanks
Charlie

 

[Burtoffce]

I hope i'm not just missing a faq or somthing explaining my troubles?

 

[hammerhead]

I'm not familiar with FJ60s but other toys have a fuel cutoff in the carb. If your valve fails or you don't have power to it, she won't idle.
The tech section has the info you want under engine/carb I think.

 

[IDave]

Yup, sounds like the idle solenoid to me, too. Maybe just needs to be hooked up.

 

[73lndcrsr]

My 40 did that same thing. The idle solenoid was disconnected.

Oops.

 

[Burtoffce]

Anyone have good shots of where this selenoid is and what vacuum lines connect to it, I looked at that desmog diagram in the tech section and I think i'm missing something. I fail to understand how this truck from 83 has more vacuum lines then my 20valve turbocharged modern vw~!! considering that car is forced induced and this truck is NA!!!

 

[CruisinGA]

What your VW does with computers and circuits, the 2F does with vacuum lines. I bet your VW has a boatload more circuits, relays, and computers than the FJ does.

 

[Burtoffce]

ya the GTi has the most complicated EFI system, but I have a chip in it and it boost up to 22psi makes around 205 hp at the wheels~! and its a 2600pound hatch!

But anyway the vacuum system on the cruiser is very old and most of the hoses look cracked and destroyed I could only imagine what would happen if I replaced them all. Maybe if I could make sense out of that desmog diagram i'd do that at the same time?
suggestions?

 

[hammerhead]

The toyota cutoff valve I'm familiar with is electric. A bud with a toy mini lost power to his in the middle of a run an
d it rendered it almost undriveable. The failure was in the harness so a simple jumper was the cure. Look closely at your carb and see if you can find an electical fitting on a solenoid. Put a jumper on it and I'll bet she'll idle just fine.

 

[j8wst]

[quote author=Burtoffce link=board=1;threadid=3825;start=0#msg28230 date=1058817462]
Anyone have good shots of where this selenoid is and what vacuum lines connect to it,
[/quote]

DA#@, can't upoad attachments!
The idle solenoid is on the right side (this would be on the valve cover side), it's the cylinder with that round black nub at the end. There's a wire connector attached which is the green connector there on the upper left. You can check it by disconnecting that connector "key on engine off" and listen for a click.

... but your idle problem could also be an egr issue.