YoterPower

Just gonna pick your guys brain here. Here is what happened, I went to try and check my spark plugs, I just so happened to snap one of the ratty plug wires that is connected to the spark plug on the number 1 cylinder (it's a v6) I decided to try and drive to my buddies house to perform the tune up, with it missing all the way of course because I was technically running on 5 cylinders. It then lost all power going up a hill and wouldn't start back. We pulled it to his house, and changed the plugs, plug wires, distributor cap and rotary button. The motor will turn over but not start. We then proceded to change the coil, and ignitor, then the computer and were still having the same problem. We also checked the distributor and that doesn't seem to be it either. Any ideas, on how to get my truck running again?

wyoming9

iTrader: (1)

Your engine needs spark and fuel did you check for both before changing all the parts.

Going up hill did you run out of gas??

Put the wires on wrong?? Were the plugs gaped correct??

All the tune up parts where new??

Did your broken spark plug wire arc on anything and cause a fusible link to open??

YoterPower

It has gas, the wires and plugs are on right, and all the tune up parts are new, I did drive it with that spark plug exposed so the last thing you mentioned has got me wondering

RBX

I have read that an ungrounded wire is really bad on the Toyota electronics and that it can foul the ignitor. Is the distributor adjusted/timed correctly? Take a timing light and make sure each wire is getting spark. As mentioned you need fuel, air and spark, but timing is the key element once you have the other three.
I'd take a multimeter and go through the ignition system to eliminate the possibility of something not working in concert with the electricals.

good luck

YoterPower

Actually I'm almost 100% sure a fusible link has opened, how would I go about fixing that?

RBX

go look at them.
Seriously though, they have clear tops, and you should see which one is opened. Or put a meter on them.

YoterPower

Okay I appreciate it guys, I thought if it wasn't in time, it would still start but be running very rough?

RBX

If time is out far enough she won't run. I had a bad plug or plugs replacing them all solved my poor power issue.

scope103

If you haven't used a timing light (at least to check for spark) and a voltmeter (at least to check for 12v at the coil), you're wasting your time. These two instruments together cost less than any of the parts you've replaced on spec so far.

http://www.harborfreight.com/xenon-t...ight-3343.html
http://www.harborfreight.com/7-funct...ter-98025.html
http://www.harborfreight.com/lcd-aut...kit-95670.html

MudHippy

The fusible link is actually the wire connecting the fuse elements(which are actually just a different type of FL) to the battery + terminal. It serves as the main circuit breaker for the entire electrical system(minus the starter, which connects directly to the battery + terminal).

See pages 7-11 of this pdf.
http://www.autoshop101.com/forms/hweb1.pdf

Here's the illustration.

http://www.toyotapartseast.com/Page_...3522,3523,3524

Also see the FSM power source pages, where the fuse elements are refered to as H-fuses, and the fusible link is shown as FL MAIN.
http://personal.utulsa.edu/~nathan-b.../2powersou.pdf

And, in my experience, the engine will run with the ignition timing adjusted anywhere within the range of adjustment. My 3VZ-E will atleast.

YoterPower

Thanks for all the information guys, it's very helpful, hopefully we get my baby up and running before college starts again

YoterPower

I guess now my problem will be finding where exactly that fuse is bad at, because I'm not getting power to the distributor but I am everywhere else

YoterPower

Guys I figured out my problem, air flow meter port on the mass air flow sensor wasn't putting out any power after we tested it, we replaced the whole sensor that included the port, and it started right up. Who would have known that would have been why I wasn't getting any spark, thanks yota techies!!

RBX

I have seen numberous problems solved on these rigs bye replacing the VAFM. Glad to hear its solved.