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Crown Vic just shut down while driving. Now when attempting ...


Sent to Car Experts April 15, 2006 10:37 a.m.
Crown Vic just shut down while driving. Now when attempting to start it just keeps cranking and won't fire up. What coul dbe the most likely problem to search for.

Optional Information:
1994 Ford Crown Vic 4.6L v8

Already Tried:
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Customer (name blocked for privacy)
Status: Closed   Value: $10   
Answer
April 15, 2006 11:05 a.m. (28 minutes and 0 seconds later) 		ACCEPTED Check Mark
The first things to check are fuel pressure and spark.Injector pulse would be a bonus.See if you can hear the pump run if you turn the key to on.It will only run for 2-3 seconds if it works.See if it will fire on a shot of starting fluid also.

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PictureDavo  -- Master technician -- 99% Positive Feedback on 1892 Car Accepts
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Reply to Davo/diablo666
Sent April 15, 2006 11:08 a.m. (3 minutes and 25 seconds later)
Fuel Pressure and spark are fine. Starter or Ignition Control Module?

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Customer (name blocked for privacy)
Customer (name blocked for privacy)
Answer
April 15, 2006 11:11 a.m. (2 minutes and 28 seconds later) 		REPLIED Check Mark
You will have to check for injector pulse with a noid light then.Make sure your check engine light comes on when you turn the key to run.What is your fuel pressure reading by the way?

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Master ASE Certified.L1 Advanced Engine Performance Certified.Pa Emission Repair Technician.Just Answer Car Category Mentor.
PictureDavo  -- Master technician -- 99% Positive Feedback on 1892 Car Accepts
ASE Master Technician/Advanced Automotive Diagnostic Technician
Reply to Davo/diablo666
Sent April 15, 2006 11:13 a.m. (1 minute and 52 seconds later)
Spark and fuel was redone when I got the vehicle as far as I know. maybe the fuel pressure is wrong, not sure how to gage it. Nothing else has been replaced.

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Customer (name blocked for privacy)
Customer (name blocked for privacy)
Answer
April 15, 2006 11:15 a.m. (2 minutes and 5 seconds later) 		REPLIED Check Mark
Check the 30 amp EEC fuse also.If you are not sure on the fuel pressure do as I suggested and try starting fluid to see if it will at least fire on that.

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Master ASE Certified.L1 Advanced Engine Performance Certified.Pa Emission Repair Technician.Just Answer Car Category Mentor.
PictureDavo  -- Master technician -- 99% Positive Feedback on 1892 Car Accepts
ASE Master Technician/Advanced Automotive Diagnostic Technician
Reply to Davo/diablo666
Sent April 15, 2006 11:20 a.m. (5 minutes and 10 seconds later)
Checked all the fuses and all are Ok, I will try the starting fluid, is there a type of tool I should look into to measure the fuels pressure?

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Customer (name blocked for privacy)
Customer (name blocked for privacy)
Answer
April 15, 2006 11:23 a.m. (3 minutes and 0 seconds later) 		REPLIED Check Mark
Yes you would need a fuel pressure gage.Try the starting fluid first and get back to me with the results.You may have to buy a noid light to check for injector pulse but they are cheap.Make sure the check engine light is working like I said.Let me know what you find.

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Master ASE Certified.L1 Advanced Engine Performance Certified.Pa Emission Repair Technician.Just Answer Car Category Mentor.
PictureDavo  -- Master technician -- 99% Positive Feedback on 1892 Car Accepts
ASE Master Technician/Advanced Automotive Diagnostic Technician
Reply to Davo/diablo666
Sent April 15, 2006 12:17 p.m. (53 minutes and 52 seconds later)
Tried the starting fluid. The vehicle would fire up but when I would let off the ignition it would just shut down. Check engine light is not on

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Customer (name blocked for privacy)
Customer (name blocked for privacy)
Answer
April 15, 2006 12:20 p.m. (3 minutes and 32 seconds later) 		REPLIED Check Mark
If the check engine light doesn't come on with the in the on position you need to double check your fuses.Use a multimeter if you have one.Looking at fuses doesn't always work.

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PictureDavo  -- Master technician -- 99% Positive Feedback on 1892 Car Accepts
ASE Master Technician/Advanced Automotive Diagnostic Technician
Reply to Davo/diablo666
Sent April 15, 2006 12:56 p.m. (35 minutes and 23 seconds later)
All fuses have been checked and all come up aok

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Customer (name blocked for privacy)
Customer (name blocked for privacy)
Answer
April 15, 2006 5:28 p.m. (4 hours and 32 minutes later) 		REPLIED Check Mark
Well if the check engine light doesn't come on you have a power to the engine computer problem or a bad computer.Make sure you have power at the relay named pcm power in this diagram. Images available only to Customers.



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PictureDavo  -- Master technician -- 99% Positive Feedback on 1892 Car Accepts
ASE Master Technician/Advanced Automotive Diagnostic Technician
Reply to Davo/diablo666
Sent April 15, 2006 11:39 p.m. (6 hours and 10 minutes later)
Fuel pump shot craps...

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Customer (name blocked for privacy)
Customer (name blocked for privacy)
Answer
April 16, 2006 7:44 a.m. (8 hours and 5 minutes later)
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PictureDavo  -- Master technician -- 99% Positive Feedback on 1892 Car Accepts
ASE Master Technician/Advanced Automotive Diagnostic Technician

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