Car cranks and turns over won't start

Tiny
JESS92
  • MEMBER
  • 2003 FORD CROWN VICTORIA
  • V8
2003 food crown Vic changed the fuel pump and filter to find out the old one worked fine. The battery works just fine alternator was changed two weeks ago. The car cranks and turns over just won't start.
Do you
have the same problem?
Yes
No
Monday, June 1st, 2015 AT 11:24 AM

2 Replies

Tiny
HMAC300
  • EXPERT
Try resetting security system if no manual look online
Was this
answer
helpful?
Yes
No
Monday, June 1st, 2015 AT 12:43 PM
Tiny
WRENCHTECH
  • EXPERT
Hi Hmac
There is nothing that is resettable on a Ford security system.
If you have a security issue there will be a security indication flashing when you try to start it.

You really need to start with the basics here.

All "crank, no start" conditions are approached in the same way. Every engine requires certain functions to be able to run. Some of these functions rely on specific components to work and some components are part of more than one function so it is important to see the whole picture to be able to conclude anything about what may have failed. Also, these functions can ONLY be tested during the failure. Any other time and they will simply test good because the problem isn't present at the moment.
If you approach this in any other way, you are merely guessing and that only serves to replace unnecessary parts and wastes money.

Every engine requires spark, fuel and compression to run. That's what we have to look for.

These are the basics that need to be tested and will give us the info required to isolate a cause.

1) Test for spark at the plug end of the wire using a spark tester. If none found, check for power supply on the + terminal of the coil with the key on.

2) Test for injector pulse using a small bulb called a noid light. If none found, check for power supply at one side of the injector with the key on.

3) Use a fuel pressure gauge to test for correct fuel pressure, also noticing if the pressure holds when key is shut off.

4) If all of these things check good, then you would need to do a complete compression test.

Once you have determined which of these functions has dropped out,
you will know which system is having the problem.
Was this
answer
helpful?
Yes
No
Monday, June 1st, 2015 AT 4:21 PM

Please login or register to post a reply.

Recommended Guides