Question about Jeep Grand Cherokee

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1993 Jeep won't start, put new crank sensor, still no go

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  • The Dude 66 Jan 09, 2009

    yes, i have spark and fuel. i maybe thinking about thottle position sensor?

  • The Dude 66 Jan 09, 2009

    yes, i have spark and fuel. i maybe thinking about thottle position sensor?

  • The Dude 66 Jan 09, 2009

    yes, i have spark and fuel. i maybe thinking about thottle position sensor?

  • Mike Butler
    Mike Butler May 11, 2010

    Do youo have spark & or Fuel?

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  • Jeep Master
  • 6,674 Answers

You are getting spark & fuel for sure? Is there any backfiring, or does it seem like its turning over faster or slower than normal?

Posted on Jan 09, 2009

  • Mike Butler
    Mike Butler Jan 09, 2009

    4.0L or 5.2L engine?

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  • Expert
  • 141 Answers

Have you checked the connections and current to the fuel pump?

Posted on Jan 09, 2009

3 Suggested Answers

emissionwiz
  • 60792 Answers

SOURCE: 2000 jeep cherokee starts then stalls in approx 3 sec 4.0 has new crank sensor

I am going to assume that it will not run even if you push on the accelerator pedal?
Can you install or attach an old timing light to the spark plug wires, turn it one and try to start it. The light should flash with the engine running, but if it shuts off at time of engine die, and the engine is still spinning, you are losing spark, My suggestion is the cranks shaft sensor on bell housing.
Second, install a pressure gage on the test port on the fuel rail and watch it as you start the engine, fuel pressure should not drop as the engine dies, if it does, the pump is not working correctly. There are two modes of power to that pump, one to start and timed, for only a few seconds to prime the system, and one to run continuously. Find the wires going to the pump at the tank. Connect test light to those wires and watch what happens during crank and at stall, You should not have the pump shut off and the engine dies.
If you have spark, and fuel pump working, when did you last change the filter,,but I put that LAST.
It has to be one or the other of these.
Good Luck

Posted on Aug 04, 2008

onyeredson
  • 404 Answers

SOURCE: 1993 volvo 850 glt

Hello,
Have you made sure the rotor is turning in the distributor, as this sound like a cambelt failure.
Sorry to bear bad tidings if this is so.
Paul 'W'
Onyer~EDson(:0) {#><U.K.
Please remember to politely rate my effort!

Posted on Jan 21, 2009

inhisname
  • 76 Answers

SOURCE: 2001 jeep grand cherokee 4.0 engine shuts off

it is possable/likely a bad ECTS (engine coolant tep. sensor), this can cause the injectors to allow to much fuel into cylinders and cause a low compression and or flooding situation, good luck, marty

Posted on Jun 07, 2009

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