Serpentine belt

Tiny
JTONRY87
  • MEMBER
  • 2002 MITSUBISHI DIAMANTE
  • 135,000 MILES
My serpentine belt broke but I was told my car has two one for a/c alternator and one for power steering and compressor but I'm not sure which one because the power steering. Obviously is out but also now. The car won't start could both have broke at same time?
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Friday, May 17th, 2013 AT 4:44 AM

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Tiny
WRENCHTECH
  • EXPERT
Why won't it start? Is the battery dead?
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Friday, May 17th, 2013 AT 5:12 AM
Tiny
JTONRY87
  • MEMBER
No battery is good and just had someone replace both serpentine belts and still would not start it cranks but wont turn over was told fuel pump is working can't figure out the problem
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Saturday, May 18th, 2013 AT 6:41 AM
Tiny
WRENCHTECH
  • EXPERT
Follow these tests exactly and post the results

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.
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Saturday, May 18th, 2013 AT 7:07 AM

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