gzos510

hi all,
i posted a thread a few weeks ago about my 82 p/u 22r vibrating on shut off. it was suggested that it may be diesling.

i have done all of the following:
switched to premium gas
ran through 2 bottles of fuel system cleaner
corrected timing to 8degrees btdc (it was off)
cleaned carb linkage with carb cleaner
cleaned carb intake valves
cleaned air filters in EGR valve

the engine is still vibrating or diesling a bit on shutoff. there were 3 times since i have done all these things where it dieseld or vibrated worse (longer) but it seems to be better lately.

i was recommended to replace the fuel cutoff solenoid. i have been activley searching for this part but cannot find it. i have done all other recommendations for this problem but to no avail so i want to try replacing the solenoid. i have not tested mine yet though. does anyone have any other suggestions or know where i can pick up a fuel cutoff solenoid for this engine? i am in oakland, ca but can go anywhere in the bay area for it. i have tried searching several pick and pull lots but all of the yotas in my year have the engine removed already. is there another model of toyota car that i can pull this off of?

also, if the linkage is sticking, is it safe to spray some WD40 on some of the linkage that sits off the carb or is that not feasible?

thanks in advance.

kyle_22r

looking at the carb from the passenger side, the fuel cut solenoid is below the black choke housing, and towards the fender. it's got 2 wires coming out. it just screws in, but if you buy a new one you'll have to splice the wires on to it.

the way to test it is have somebody turn the ignition on, you should hear it click. it should also click when they turn the ignition off. don't hesitate to pull it out anyway though, there is an o-ring on the end that can disintegrate and cause the solenoid to be rendered ineffective. i don't know of anywhere to get the o-ring except for a carb rebuild kit.

gzos510

thanks for your reply. sorry what i meant was that i was looking for the part to purchase. i have the 82 repair manual so i was able to locate the solenoid. i went to a pick and pull and all trucks w/ a 22r had the engines removed already, so i removed it from an 82 tercel but it was just a tad smaller than the one for my 22r so i didnt take it. i will check the o-ring and see what kind of shape it's in.

do the wires disconnect from the solenoid easily? i wasnt really able to get them off of the tercels solenoid so by the time i got the solenoid out of the carb the wires were twisted up pretty good.

thanks for your help.

Ditchpig

The solenoid should come out easily, with no twisting of the wires, unless you leave it still connected to the harness. Just get one from the stealership, they can't be that pricey, and I don't think you could really rely on that type of part out of a junker anyway. Personally, I'd spring for a replacement. Try Napa or a parts store first, then if all else fails hit the Yota dealer.

gzos510

stealership is right. they want $190 for the part! I actually just found a brand new aftermarket one for $24.70! I am picking it up today.

does the solenoid just pull out? I thought it had to be screwed out and that's why the wires twisted.

thanks for your reply.

Ditchpig

It threads in but usually it's only got to be "unstuck" using a wrench then it comes out using fingers only. Glad to hear that you found your solenoid! Just screw it into the carb then hook the wires up to the wiring harness and you're done!

Outsane

where did you get it at?

gzos510

doh! the solenoid didnt fix it. I'm going to start troubleshooting my EGR system and look for vacuum leaks.

Outsane, I got the part from Monument auto parts. They have several bay area locations. They got the part the day after I ordered it.

Outsane

ok thanks.

mackdss

I may be totally off here since I am not a master at these engines but you might check this... I have a 20r and it had a rough idle and when shutting it down it would diesel. I finally found that my intake manifold gasket was bad and when I replaced it it idled better and the dieseling was gone. You might want to check that or at least torque you intake bolts down.. Mack

gzos510

thanks mack. i will try that. i am having a bit of a rough idle myself also so i think it may have something to do with that. thanks for the reply.

mackdss

any luck??

titicaca

ive got a 22r with a weber 38 dgav carb and mine diesels the same way, ive got the timing set correctly, the only thing im not exactly sure of is the idle mixture screw, the truck seems to be a little on the rich side and if your running rich it could cause the same issue i would think. anyways i wasnt trying to jack the thread but just wanted to let you know im having the same problem with my truck , btw its a fresh rebuild and a brand new carb. im going to tune on it today to try to get it right.

gzos510

no luck yet. i am really thinking that there is a vacuum leak somewhere. i havent had time yet to do some testing. im replacing the oil pan out in a week or so, so i am going to take a look at it then. i will definitley post a fix if i find one.

i have been trying different grades of gas and it seems like the truck runs best on mid grade. it still diesels but it seems much lighter than before. a friend of mine also recommended running cooler spark plugs, i need to replace mine anyway so that may have something to do with it.

titicaca

ive leaned mine out a bit and its seemed to help a little bit, it still does it a little though, i need a to lean out the main jets.

Flumixt

Well mine is a 79 20R. Here's what happened with the solenoid. The engine would cut in and out at odd times, accelerating or decelerting or just steady driving. The solenoid was being switched on and off at random.

It was the computer! Didn't know the 79 had one did you? Its about the size of 2 packs of playing cards up under the dash by the driver's left knee. Cost me $200 in 1984.

The problem came up AGAIN in about 2001 with the new computer. What would it cost now? SO!!

I wired the solenoid to a switch on the dash. Independent of the computer. At startup I flip it on then the ingnition. At shut down I flip it off then the ignition.

If you try this easy fix it will prove whether it is the comp or not.

myyota

You might also try checking for vacuum leaks around the base of the carburetor, i used some carb cleaner, sprayed some around all the vacuum hoses and found nothing, sprayed arouned the base of the carb and the idle went up alot, vacuum leak found.

the_supernerd

Do as Kyle_22R said and test the fuel cut solenoid. Eventhough you installed a new one, there are more things to the system than just the solenoid itself. On my truck, it is also used as a smog control, so the solenoid is attached to the computer which controls it using input from a vacuum switch, engine RPMs, and a speed sensor. I am not as familiar with '82 trucks, but I would think that it would be similar.