Question about 1999 Jeep Cherokee

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Have no power to coil or fuel pump wont start speedomater say no bus

It a 4 liter

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  • Jeep Master
  • 20,706 Answers

Blown fuse?
my 2002 has no way for speedo to say or display that.
no power, what does that mean.
1: cant hear it.
2: my voltmeter shows 0v cranking.
what?

here is a little rule on pumps fuel
no spark no fueling. so spark is first.
always
and rule 2, the pump on most (1/2?) never pump until cranked.
(fire prevention and other reason, ask)

Posted on Nov 29, 2013

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: 1994 jeep cherokee starting problem

it is the crankshaft sensor try that and i bet youll get it

Posted on Sep 06, 2008

  • 5 Answers

SOURCE: 93 jeep grand cherokee 4.0 L wont start.

start by tracing the wires back to the computer checking for breaks in the wire or corroded terminals

Posted on Mar 23, 2009

redlinetech0
  • 33 Answers

SOURCE: no power at the new pump, cranks ,no spark,fuses and relays are good and the odometer says no bus with key on engine off it has coil packs and is multi point injection

did you plug the connector in when you installed the new pump?

Posted on May 23, 2009

  • 3600 Answers

SOURCE: 2001 jeep cherokee sport 6 cyl 4 wdr cranks want start

If the data link is not talking to the computer check your ground at the computer and at the data link connector to see if the computer is even alive ground pin 3 on DLC with the key off then turn key to the run position if it flashes the check engine codes record them, if no engine light, does the engine light come on when you turn the key on then go off? if not, check fuses if not check power for pin on computer, if it has power you have a bad computer. But TEST THE GROUNDS IT IS THE BIGGEST FAILURE For these rigs or any manufacture. check that you have power also at the DLC too. if not you need a digital ohm meter and a subscription to http:///.www.alldatadiy.com and start reading the campaigns on that vechile for computer and trouble tree for dead DLC and computer. I don't have that subscription or I could tell you more where to look, if you need anymore help let me know. Also if the crank sensor could cause it not to run the fuel pump but so can the cam sensor. You need to find out if the computer gets it's pulse for the pump at the computer if it does then you need to test them both. There are three wires a ground a colored power wire and a wire to go to the computer you can test these sensors with a meter to see if there is a pulse to each. sometimes the fuel pump gets it's signal from the coil pack so it's important to have the subscription, you can do a search for each item and test them as needed and has a wiring diagram.

Posted on Jul 27, 2009

roniecon
  • 6927 Answers

SOURCE: 2001 jeep cherokee cranks but wont start and has

If all the fuses are good,replace the crank shaft sensor,this is the problem.

Posted on Jan 04, 2010

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