Still won't start!!!!

[acsho]

Won't start after intake was put back on!

I removed the intake and valve covers to track down a noise on my 3.2. I painted the intake but I didn't remove the DIS module,put everything back together today and now it won't start. It just turns over and not even a spuder, and the tach reads 500 RPM. I checked other post about bad grounds etc. I checked the grounding to the intake crosover tube with a volt meter and it's ok. I checked the plug wires to make shure they were correct; I have a spark, good fuel presure, intake bolts were torqued to spec. So now what? I am becoming very mad at the car and I am considering selling, If I don't get it fixed soon.

 

[St Louis SHO]

did you paint the bracket and/or spot where the ground goes on the back of the intake?

 

[Kens1992mtxSHO]

did you paint the bracket and/or spot where the ground goes on the back of the intake?

X2 - Check where you painted. If any of the brackets are painted or if you painted the spot where the grounding strap goes it won't start.

 

[johndallara]

no-start after intake removal

greetings from central NC.

man, it sure sounds like the old "bad ground" problem. I would double check that. there should be a way to pull one of the plugs to check for spark. that way you know that your DIS is working. doesn't sound like the ingition coil firing order is off.

Another thought is the fuel ****-switch in the trunk. if you have tripped it, won't get any fuel, same no-start problem -- will have spark, no fuel.

also, make sure that if you disconnected the top connector of your CPS, that you re-plugged it back in.

several good SHO mechanics in the area, so don't despair (not yet, anyway).

JD

 

[hawkeye18]

+1 DIS. Get an ohm-meter and make sure you have a good path between the two lower bolts and the negative battery terminal. If it's more than 3-5 ohms, it's too much.

 

[acsho]

I cleaned all the brackets off down to bare metal where they contact the head and the intake. I checked that I had a ground to the crossover tube but I didn't check the resistance, I will check that towmorrow.

 

[acsho]

greetings from central NC.

man, it sure sounds like the old "bad ground" problem. I would double check that. there should be a way to pull one of the plugs to check for spark. that way you know that your DIS is working. doesn't sound like the ingition coil firing order is off.

Another thought is the fuel ****-switch in the trunk. if you have tripped it, won't get any fuel, same no-start problem -- will have spark, no fuel.

also, make sure that if you disconnected the top connector of your CPS, that you re-plugged it back in.

several good SHO mechanics in the area, so don't despair (not yet, anyway).

JD

The fuel pump is running and I have a spark, I didn't unplug the cps but I checked that to.

 

[stangeater]

X5 on the ground. Also check all the vaccum lines. Good luck

 

[houghton33]

I suggest you double check a connector center rear of engine.
It provides the ground for the injectors and may have been
disconnected when removing the rear valve cover.
I spent many hours trying to start one of these
after a routine reseal, only to find that the main
wiring to the injectors was separated.

 

[acsho]

Are you talking about the connectors attached to the black bracket that attaches to the intake where the ground strap is attached?

 

[ViPER1313]

I would bet your problem is the ground between the main intake manifold and the crossover tube itself. Remove the crossover tube and clean the contacts where the 2 bolts go through the crossover tube and onto the main intake plenum. Scrape off any paint on the underside of the crossover bolt hole brackets and the top of the intake brackets.

 

[acsho]

I did that yesterday, that was one of the first things I tried after reading a couple of replys. It didn't work, thanks anyway.

 

[93rev2sev]

Is the brake booster hooked up?

Sounds like a massive vacuum leak.

Look at the rear passenger side of the intake for the booster hose. It's the thing that comes out of the back-left of the intake manifold and connects to a large vacuum hose. Also check to make sure the intake is seated properly. It's real easy to get a wire caught between the intake and the heads...especially in the drivers side rear of the intake...near/under the TB.

 

[acsho]

Ok, I have had it with this car! After removing the intake it won't start. I haved checked all the grounds, the intake is steated properly, no vacuum leaks, all wires are connected. I have a spark, I have fuel pressure, but it seams that the injectors are not spraying fuel. Does the DIS module have anything to do with the injectors? I need help, I live in the foothills of NC and nobody seems to want to work on these cars, two dealerships refused to work on the car. Anybody in western NC want to volunteer?

 

[93rev2sev]

You just gotta keep going over it. You will find something...

First, do you hear the fuel pump prime when you turn the key?

If so start going over your work...

Check under the throttle body to ensure the hoses are all connected.

The DIS needs to be bolted to the crossover tube. The two bottom screws MUST BE INSTALLED AND TIGHT. Then, ensure the crossover tube is securely bolted to the rear bracket, here...you can see the bolt and bracket that I'm talking about in the upper left hand corner of this picture.

From there, make sure the rear tank is bolted to the bracket. Then make sure the rear grounding strap is secured the to the rear of the intake. From there, check all the connections behind the DIS (by the fuel rails). Make sure both the CPS and the cam sensor are plugged in. There is a third plug, also. It's a single wire plug, it gets mangled a lot. You should also make sure the small ground wire from the battery is connected at both ends.

If you had your wires off, I would take a SERIOUS look at those. Make absolutely sure the wires are in the right order on the coils. I've done wires more than a few times and I've had them switched more than once.

Take out the airbox and remove the intake hose, Have a good look with a penlight under the throttle body...again.

Loosen up the clamps on the intake runners so that the individual intake parts can wiggle around a bit. Untorque the intake manifold and reseat the intake...having the clamps loose allows the intake to seat MUCH more easily. Pay special attention to the rear of the intake on the drivers side. There are wires there that just love to sit on the intake port. Don't forget to tighten those clamps back up.

What makes you think the injectors aren't fireing?

 

[projectSHO89]

Merged with old thread. Please do not start new threads for the same issue.

Steve

 

[acsho]

Ok, I have double checked everything. The plug wires are correct, and all hoses are hoked up the grounds are good and I didn't remove the dis module.
The reason I think the injectors aren't working is that, with the front plugs removed and someone cranking the engine, there isn't any puff of fuel or the smell of fuel comming from the plug holes.

 

[Kens1992mtxSHO]

So, you're getting spark and air, but no fuel??

Did you trip your fuel cut off switch accidentally in the trunk or can you hear your fuel pump prime when you turn the key to the on position??

 

[acsho]

That's right. The fuel pump is on, I can hear it and I have fuel pressure.

 

[acsho]

Ok does anybody have any other suggestions about what it could be? I am giving it another week of tinkering and she's going to be sold.