Won't Start

[Funrover]

1994 Disco......

Has good spark....good fuel pressure...is getting plenty of air flow..... timeing is on(from what I was able to do on the side of a road) Cranks but no start... Any ideas? Tried to push start it..... No luck there...wouldn't keep going..... Thanks,

Aaron

[Hank]

If you have spark and fuel, the only thing your lacking is compression....

Check the rotor button and distributor cap real good. Could water have entered the distributor cap any time in the last little bit?

Might also check that little module next to the distributor.

[Funrover]

Originally Posted by Hank

If you have spark and fuel, the only thing your lacking is compression....

Check the rotor button and distributor cap real good. Could water have entered the distributor cap any time in the last little bit?

Might also check that little module next to the distributor.

I checked the cap and rotor...but it was late last night and I tow roped it to my house...... What module?

[almostblackmamba]

check the wires, many times i have myself mistaken where they go conected. on my disco when that happens, i just leave it overnight with the hood open and everything disconnected, battery, cables, plugs, anything electrical. and the morning after it starts.

[almostblackmamba]

Originally Posted by Funrover

I checked the cap and rotor...but it was late last night and I tow roped it to my house...... What module?

i think its the module that sends power to the distribuitor no?

[wade]

I just read that if your MAF sensor isn't working then there is a shutoff at 550 rpm. I don't know if this has anything to do with your problem, but thought I'd mention it.

[Disco Mike]

Originally Posted by wade

I just read that if your MAF sensor isn't working then there is a shutoff at 550 rpm. I don't know if this has anything to do with your problem, but thought I'd mention it.

Wade, I have driven my 99 for 4 months without my MAF plugged in before I replaced it. I don't buy the shut off theory.
Mike

[wade]

(Below is from RAVE..but I agree with Mike that it probably isn't the problem. This is for the D1, hotwire MAF.)

Mass air flow sensor (MAF Sensor)
The ’hot wire’ type mass air flow sensor is mounted
rigidly to the air filter and connected by flexible hose to
the plenum chamber inlet. The sensing element of the
MAF Sensor is a hot wire anenometer consisting of
two wires, a sensing wire which is heated and a
compensating wire which is not heated. Air flows
across the wires cooling the heated one, changing its
resistance. The ECM measures this change in
resistance and calculates the amount of air flowing
into the engine.
As there is no default strategy, failure will result in the
engine starting, and dying when it reaches 550
rev/min, when the ECM detects no MAF Sensor
signal. The fault is indicated by illumination of the
malfunction indicator light (MIL) on North American
specification vehicles.

[Disco Mike]

Mine is a Bosh system on a DII, maybe that is why.
Mike

[wade]

The more I learn about the two models, the more it appears the DII was a definite improvement. The cooling fans do not run all the time and burn out and if the MAF sensor goes out, you aren't stuck. I think the ignition is an improvement also from what I've read. Hmmm...I don't want to get rid of my D1, but maybe a DII to keep it company...

[Disco Mike]

There you go Wade, when your D1 breaks down and gets stuck, bring in the DII for the recovery work.
Mike

[Discodude19]

Still wont start. Any more ideas?

[Disco Mike]

Originally Posted by Discodude19

Still wont start. Any more ideas?

Well, it is not from a lack of good clean air.
I am at a loss as to what could be causing this.
Does the engine turn over at normal speed, evenily? Does it even try to start, have you tried to shot a little starter fluid into the engine while cranking?
Have you pulled the cap and checked to make sure the timing chain hasn't jumped a couple of teeth throwing your timing way the hell off. With the rotor pointing at the # 1 plug wire is the #1 piston all the way to to the top.
Good luck,
Mike

[Hank]

when you say good fuel pressure, what do you got?

[Funrover]

Originally Posted by Disco Mike

Well, it is not from a lack of good clean air.
I am at a loss as to what could be causing this.
Does the engine turn over at normal speed, evenily? Does it even try to start, have you tried to shot a little starter fluid into the engine while cranking?
Have you pulled the cap and checked to make sure the timing chain hasn't jumped a couple of teeth throwing your timing way the hell off. With the rotor pointing at the # 1 plug wire is the #1 piston all the way to to the top.
Good luck,
Mike

I am gonna do that when I have free time this week!!....when i tried last everything cranked over at a normal pace..... It doesn't even studder though...I have more time to look at it thurs and fri..I will tear into it then!!