Loss of power/will not start

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Shawozzy

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Recently I bought a 95 Green MTX with 117,000 miles on it. Does not have the power that is SHO (not like it should) already knew it needed a new intake gaskets, figured it would just need a tune up and it would be screaming again! WRONG Had new mechanic do the intake gasket, change plugs, power steering pump, and new sub frame. never really ran very good and was not any better when I got it back. would not start easily, would die when you tried to take off, and still NO power. Took it to my regular mechanic did a 60,000 mile tune up. Would not start when I was getting it off my trailer, sprayed some starting fluid got it to burp a little. looking it over guy that did the intake gaskets did not attach the ground to the intake manifold. So my regular mechanic tried to see if we had a injector pulse, we do not and when you are cranking it over there is some clicking sound coming from the dash near the radio that it was not doing before. We figure It is either a ground or the PCM. Besides the one on the back of the intake manifold could they have missed another grounding wire while replacing the intake gaskets? Is there a way I can test the PCM to make sure it does or does NOT need to be replaced? Could we just be missing something all together? Any help would be greatly appreciated!!
 

zoomlater

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Do you hear the fuel pump run when you turn the key?

Do you have fuel pressure at the rail? If you depress the schraeder valve, fuel should spray out. If you have a fuel pressure gage, it should read around 30 to 40psi when you turn on the ignition.

read through the thread below to check your CCRM/PCM



Did they tighten the crossover tube bolts down? Is both screws installed on the bottom of the DIS? These are grounds that are needed.
 
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Shawozzy

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We do have fuel pressure, around 30 lbs. I am not sure about the grounds I will have my buddy check them out as soon as he can. It’s at his place about 4 hrs away. Thanks for the information. Is it possible to cause the PCM to go out from not attaching those grounds?
 

Ta2dResqr

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May be a little low on pressure:
Engine Running .................... 210-310 kPa (30-45 PSI)
Key On Engine Off .................... 255-297 kPa (37-43 PSI)

I don't think that is the main issue though. My biggest concern is lack of injector pulse. No fuel, no bang. I would begin by looking at your other PID data. Do you have cam/crank signal? If the computer doesn't see these, it doesn't know when to command the injectors.
 

zoomlater

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I would hope not. So the car was running before any maintenance was performed, just low on power. Did you pull any codes before the maintenance was done.
. Is it possible to cause the PCM to go out from not attaching those grounds?
Here is a couple of posts on checking the crank sensor and DIS


 
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Shawozzy

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It was running with rough idle, no power even with the secondary’s kicked in. One time I ran up the rpm’s in 3rd to see if it would red line. It never did quit pulling about 6,000 rpm’s and that was it. I did not pull any codes 95 is before the time of anything I have to pull codes. I would have to talk to my buddy about PID data or cam/crank signal. He is the brains of the operation. I tear em apart and he usually has to fix em!
ZOOMLATER you were talking about two grounds going to the intake crossover. Do both grounds go to the same mounting point on the passenger side back of the motor?
Would you know if the timing belt covers for the ATX & MTX Are interchangeable? The one on my mtx is toast and I have a atx is why I ask.
 

zoomlater

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It was running with rough idle, no power even with the secondary’s kicked in. One time I ran up the rpm’s in 3rd to see if it would red line. It never did quit pulling about 6,000 rpm’s and that was it. I did not pull any codes 95 is before the time of anything I have to pull codes. I would have to talk to my buddy about PID data or cam/crank signal. He is the brains of the operation. I tear em apart and he usually has to fix em!
ZOOMLATER you were talking about two grounds going to the intake crossover. Do both grounds go to the same mounting point on the passenger side back of the motor?
Would you know if the timing belt covers for the ATX & MTX Are interchangeable? The one on my mtx is toast and I have a atx is why I ask.
The two screws I mentioned are the bottom two screws that attached the DIS to the crossover tube. There are two more screws on the top of the DIS as well. After you are sure the screws are tightened, then make sure the crossover tube bolts are tightened as well. Another member's car would not start since those two bolts were not tightened. That is my understanding of the DIS ground via the intake ground.

I am not sure if the covers are interchangeable. Someone else would need to chime in.
 
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BaySHO Performance

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As usual, the first order of the day is to see what codes you have. Doesn't mean there aren't any if the Check Engine Light hasn't come on. Very few of the codes throw the CEL. Let us know what you find:


ATX and MTX timing belts are interchangeable. New ones have two marks at the top for the camshaft sprockets and two marks at the bottom, one tooth apart. One mark is for MTX, the other for ATX. The belt should say which tooth is for which.
 

zoomlater

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As usual, the first order of the day is to see what codes you have. Doesn't mean there aren't any if the Check Engine Light hasn't come on. Very few of the codes throw the CEL. Let us know what you find:


ATX and MTX timing belts are interchangeable. New ones have two marks at the top for the camshaft sprockets and two marks at the bottom, one tooth apart. One mark is for MTX, the other for ATX. The belt should say which tooth is for which.
He was asking about the timing belt covers for an MTX verses an ATX engine, not the belts. Thanks for the post in the link above on how to test the DIS
 

Shawozzy

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Thanks for all the input. I have to get to STL before I can even check any of it out. Ford has got a handle on it parts it needs so we are working a lot for now. As soon as I can get to it I will definitely get u guys a update!
 
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