Question about 2000 Jeep Cherokee

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2002 jeep grand cherokee

Its getting air in the fuel rail

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I answered this already, you have a defective fuel pump pressure check valve.

Posted on Feb 10, 2012

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: 2002 jeep cherokee laredo

My 98 Jeep Grand Cherokee had the same problem. Over heated when standing still. Took it to dealer and they could not find any problem with cooling fan. After doing my own investigation I found out that the electric cooling fan would begin to seize up after about 1hr. of operating. (gets hot)

The dealer would look at fan and see that it was running and think its ok. The problem is, it wasn't running fast enough.

I have a relay on the right side of front fender and jumped the fan to stay on with motor off. (must know what your doing). After about 1hr. fan started slowing way down. Returned it to dealer told them what the problem was. They were not smart enough to jump the relay so they put a couple hundred miles on it even though i told them it works OK when moving. Make sure you tell dealer to use the relay to jump.
Replace cooling fan motor. Works great

Posted on Feb 27, 2009

  • 114 Answers

SOURCE: 2002 wj jeep grand cherokee p1756

The governor pressure sensor is the most likley cause however an inspection of fluid or debris in trans pan would be a good idea to make sure there's nothing excessive in it. Attached is a list of possible causes however the senor would be the most common.

POSSIBLE CAUSES

  • Powertrain control module
  • 5 volt supply circuit open
  • Check transmission fluid level and condition
  • GOV press sensor signal circuit shorted to voltage
  • GOV press sensor signal circuit shorted to sensor ground
  • GOV press sensor signal circuit shorted to ground
  • GOV pressure sensor signal circuit open
  • Sensor ground circuit open
  • GOV press sensor signal circuit shorted to voltage inside transmission
  • 5 volt supply circuit open inside transmission
  • Intermittent governor pressure solenoid
  • Internal transmission problem
  • Oil burnt or oil pan has excessive debris
  • Other transmission DTC'S
  • GOV press sensor signal circuit shorted to sensor ground inside transmission
  • Valve body
  • GOV press sensor signal circuit shorted to ground inside transmission
  • GOV press sensor signal circuit open inside transmission
  • GOV press sensor ground circuit open inside transmission
  • Governor pressure sensor (high)

Posted on Mar 26, 2009

  • 412 Answers

SOURCE: How do you program a 2002 Jeep Grand Cherokee FOB?

if you have an original working fob and your owner's manual,it will explain procedure,otherwise will have to go to dealer to be programmed

Posted on May 17, 2009

  • 12 Answers

SOURCE: overhead console completely dead 2002 jeep grand cherokee laradeo

Check the fuses for the overhead console, could be that if not then the console needs to be replaced.....

Posted on Jun 05, 2009

  • 58 Answers

SOURCE: replace fuel filter on 1997 jeep grand cherokee

If you have the V8 engine, the filter is actually part of the fuel pump. WHICH IS IN THE TANK

Posted on Jun 28, 2009

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1 Answer

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I would start with a mechanic. Check plugs and air filter, then fuel pressure at the fuel rail.

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I think you know that

Do you hear the fuel pump & have
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1 Answer

Why does air get into the fuel rail


Air gets in the system due to a failed pressure check valve in the electric fuel pump. The fuel pump and valve are one piece so the pump must be replaced to cure the problem. The pump is located inside the fuel tank, the tank must be removed from the truck to access the fuel pump.

Feb 10, 2012 | 2002 Jeep Grand Cherokee

1 Answer

My 2002 grand cherokee loses power on hills and acts as if it doesn't have a passing gear. It has 109000 miles.


Does it otherwise start and run OK?

Have you replaced fuel and air filters?

Check running fuel pump pressure, and also have fuel pressure regulator checked for correct operation.

What you describe sounds somewhat like fuel starvation, although severely impeded air flow because of a clogged air filter could possibly produce similar results.

Jan 31, 2011 | 2002 Jeep Grand Cherokee

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CHECK FUEL REGULATOR ON FUEL INJECTOR RAIL,&ALSO FUEL PUMP, CHARLIE

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1 Answer

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fuel pressure seems a bit high...could be a bad regulator. can't remember if yours is on top of the sending unit (on tank) or on the fuel rail though. Do more testing there.

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1 Answer

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are you sure it is the rail and not an injector seal,find exactly where the leak originates to see if it is at an injector or where the main fuel lines attach

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Hi, you have to remove the fuel rail and then remove the electrical connector and then there is a clip that holds the injector to the fuel rail remove that clip and then remove the injector

Nov 10, 2009 | 2000 Jeep Grand Cherokee

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most likely not, but you can improve it by keeping your foot off the gas and brake , so to speak 

Sep 27, 2009 | 2002 Jeep Grand Cherokee

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