2002 Mitsubishi Diamante not working car

Tiny
LISNELIA
  • MEMBER
  • 2002 MITSUBISHI DIAMANTE
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 100,000 MILES
My car did not turn on, but after one week it turned on and when I drove it and stopped it turned off and I had to turn it on again. I have to keep my foot pressed on the gas in order for the car to stay on. Today it the car does not want to turn on can you please give me an idea of what the problem could be
Wednesday, December 24th, 2014 AT 1:54 PM

1 Reply

Tiny
WRENCHTECH
  • MECHANIC
  • 20,762 POSTS
Can't tell you what the problem is with no info but I can tell you how to test it.

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
-1
Wednesday, December 24th, 2014 AT 2:46 PM

Please login or register to post a reply.

Sponsored links