I have a 94 excab 4x4. I was turning around in the road the other day and she just died never to crank back up! Had a friend come pull me in and it will start being pulled but it will not idle and it runs very rough! I have since changed the fuel filter plugs and wires. It will sometimes diesel after trying to start also. I am getting fire out of the coil but nothin from 3 of the plugs.( i stopped checking after 3) dist cap and rotor look ok. Any help??? Thanks!!

 

Pull the front timing cover and check the timing marks line up. Possible jumped a tooth or two. Hydraulic/spring tensioner could be getting weak. Check your fuel pressure too.

 

Check for engine codes FIRST.

Then go from there.

 

Yeah I got excited. Do this first before you go ripping the engine apart.

 

I have no check engine light on can you still check codes?

 

Yes- quick search should show you how. Post back once complete.

 

How can it run at all if none of the spark plugs are firing?

I assume you pulled the coil-distributor wire and got a spark to ground when cranking. I assume you did the same thing to three plug wires (or plugs), but got NO spark. I would do the same to the other three; if you have 3 plugs firing that could be enough to get it to start and run rough (really rough).

Then if 1/2 of your plugs are firing, the problem is in the plug wires or the distributor.

This will probably throw a code (checking for codes is always something you need to do, and it's easy), but if you can narrow the problem down to WHERE it is you're almost home.

(Incidentally, a jumped tooth on the timing belt will have nothing to do with a "no spark" situation.)

 

Yeah i did app something is firing but the 3 i checked werent. How do you check engine codes?

 

This question gets asked and answered 10 times per day AT LEAST. PLEASE FOR THE LOVE OF GOD READ THE FOLLOWING THREAD so we can avoid answering the same questions a bazillion times:

https://www.yotatech.com/forums/f116...k-3vze-187741/

 

Great thread but i didnt see a thing about how to check engine codes

 

Actually, post #20 contains a link to a ToyotaNation thread ( http://www.toyotanation.com/forum/80...e-posting.html ) . Post #2 in that thread gives a detailed account of how to check codes & what each number means.

 

if your getting spark to the dizzy, but not to the plugs, I would think that either A) plugs and wires are junk, B) rotor and cap are junk, or C) the dizzy is toast.

 

Oh fer crying out loud ... You don't have to make him jump through hoops.
http://www.ncttora.com/fsm/1990-1995...e/diagnosi.pdf

(The SST (special service tool) can be found here: http://www.officedepot.com/a/product...aper-Clips-No/)

 

My 1995 4runner would die randomly also and i ended up replacing the EGR valve and that fixed it.

 

Thanks alot! That was much easier!

 

Sounds to me like the distributor. Codes? Good luck with this one.

 

Well guess i was wrong i do have spark and fuel. Im clueless at this point!

 

Did you ever check your codes like we suggested?

 

Guess my check engine bulb is out. Goin to look into that tomorrow