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-   -   cold starting issue 92 toyota pickup v6 220k km (https://www.yotatech.com/forums/f116/cold-starting-issue-92-toyota-pickup-v6-220k-km-303100/)

Supa 01-11-2018 02:32 PM

cold starting issue 92 toyota pickup v6 220k km
 
Over the past week when I turn the key I get a single click and then nothing, sometimes on the next try it will fire, sometimes it takes a couple. Well today in the cold it refused to turn over and I had to be push started to get it home. Stupid thing is when I got home it fired right up 10 times in a row when it was nice and hot. The battery is brand new and now I was gonna replace the starter but Im thinking it might be something else?

thanks for the help

scope103 01-11-2018 04:00 PM


Originally Posted by Supa (Post 52387247)
... I was gonna replace the starter but Im thinking it might be something else?

Good choice -- with that attitude, you're not only going to save money, but a lot of aggravation.

Do you have a multimeter? No? No excuse for that. https://www.harborfreight.com/7-func...ter-90899.html

You should have a starting relay in the under-hood junction box (more than almost anything else, Toyota moved this around in different years. Here's a picture of my '94.) When someone turns the key for you (and the starter fails to turn), can you hear the relay (get w/i 30cm). If you hear the relay, reach in and pull the solenoid wire from the starter. With your multimeter, do you get 12v on connector that would go to the starter?

If you don't hear the relay, you could have a bad relay, bad igintion switch or bad Park-Neutral (automatic) switch or bad clutch-start switch (manual). Pull the starting relay and look for voltage on the coil pins with key to STArt.

https://cimg3.ibsrv.net/gimg/www.yot...0a6d36f4c8.jpg

Supa 01-11-2018 06:03 PM

Ill just replace the starter. Im terrible with electronics

Co_94_PU 01-11-2018 11:26 PM


Originally Posted by Supa (Post 52387264)
Ill just replace the starter. Im terrible with electronics

There are plenty folks here that will happily take all that extra cash you have troubling you...

Buy a meter do the voltage checks, ten dollars vs a hundred or several, you might have a loose wire, a dirty connection, or need a different part. There isn't any reason to throw parts at a problem blindly.

Say for example its a loose wire but you didn't test the voltages, you put the new starter in and cinch up the connection and suddenly it works. You think you made the right choice and only needed to clean or tighten a nut..

RAD4Runner 01-11-2018 11:48 PM


Originally Posted by Supa (Post 52387247)
... I get a single click

A problem well-stated is almost solved.
Exactly what clicks and where?
Always indicate model-year-engine-TRANSMISSION.

I'm willing to bet the starter is not the problem.

Supa 01-12-2018 11:27 AM


Originally Posted by Co_94_PU (Post 52387276)
There are plenty folks here that will happily take all that extra cash you have troubling you...

Buy a meter do the voltage checks, ten dollars vs a hundred or several, you might have a loose wire, a dirty connection, or need a different part. There isn't any reason to throw parts at a problem blindly.

Say for example its a loose wire but you didn't test the voltages, you put the new starter in and cinch up the connection and suddenly it works. You think you made the right choice and only needed to clean or tighten a nut..

you are 100% right. I borrowed a meter from my buddy and will do this after work. Thank you for the help

scope103 01-12-2018 12:08 PM

You'll be glad you did.

Just in case you come back here for some help (you probably won't need to, but who knows?), a few words.

Sometimes people have said "I put the meter on [x], and I got nothing." You CAN'T get nothing. You can get 12volts or 567ohms or 0.500 amps or infinite resistance. You can't get "nothing." If you're really unsure, take a picture of the meter; some smart gal here might be able to figure out what you're seeing. Your meter has two leads, so every measurement is BETWEEN two points. In the great majority of cases, to measure voltage it is between ground (the best one is the negative terminal of the battery, but most metal chunks in your truck are bonded to ground), and somewhere else. This will get a little more interesting when you're measuring resistance; it is always important to pay attention to both ends.

When you pull your meter out of the case, do a sanity check. Make sure it's set to voltage in some range that includes 12v, and put the leads on the battery. (With the truck off, it should be around 12.6v, temperature dependent). I use a meter all the time, but occasionally I'll have the leads set wrong (often current measurements have the leads in different sockets on the meter) or something else not set up right. Check the battery first; it will tell you the meter is working. (And if you get something like 11.1v on the battery, you have a dead battery, and you need to fix that first.)

RAD4Runner 01-12-2018 12:36 PM

Another quick approach is to divide and conquer. Check downstream "half" of the system. Check if solenoid and starter are working properly by doing this:
https://www.yotatech.com/forums/f199...l#post52367443


Originally Posted by Supa (Post 52387311)
you are 100% right. I borrowed a meter from my buddy and will do this after work. Thank you for the help

Good move! Next only to our senses, the multi-meter is the most important electrical diagnostic tool for our classics.

Scope,
Do you think schematic below (from 1990-1995 4Runner FSM) applies to O.P.'s truck?

Supa,
Also, please check this. I trust Toyota but schematic is only a piece of paper. I always want to verify if it was done correctly at the factory, in case the tech has had too much sake the night before.
https://lh3.googleusercontent.com/6i...A=w979-h736-no

scope103 01-12-2018 12:51 PM


Originally Posted by RAD4Runner (Post 52387316)
... Scope,
Do you think schematic below (from 1990-1995 4Runner FSM) applies to O.P.'s truck?
...

Close enough.

On my starter relay, there is a "schematic" on top of the relay. While I also found that pin 5 was "always on 12v", you know that there has to be 12v on one side or the other of the "contacts" of the relay. So in my picture, the half-fork connector is to plug into the socket for pin 3, and the other end of the wire goes to +12v on the battery to spin the starter (bypassing the relay, and by extension, the ignition switch). https://www.yotatech.com/forums/f116...switch-287859/ All part of RAD4runner's "divide and conquer" diagnosis strategy.

Note that the PN switch (automatic) is wired in between the relay and the starter, but the clutch-start switch (manual) is wired between the coil of the relay and ground. This is getting a little more complicated than necessary, but it means OP needs to know which he has to interpret his results.

RAD4Runner 01-12-2018 01:34 PM


Originally Posted by scope103 (Post 52387318)
https://www.yotatech.com/forums/f116...switch-287859/
..."But if I had a lovely assistant I can think of a lot of things I’d rather they be doing.
All part of RAD4runner's "divide and conquer" diagnosis strategy.

LOL!
Yes, that's a good tool! Thanks, Scope.


Note that the PN switch (automatic) is wired in between the relay and the starter, but the clutch-start switch (manual) is wired between the coil of the relay and ground.
O.P. This is why I stress that people specify model-year-engine-TRANSMISSION- trim when posting.


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