Question about 1995 Jeep Grand Cherokee

2 Answers

2001 grand cherokee laredo 3.1 diesel would not start

Injection pump and injectors checked cleaned, calibrated by specialist diesel service centre. I do not have the timing specs to check the installation of the pump. The cranks but would not start.

Posted by on

  • 1 more comment 
  • silver top May 11, 2010

    hi from uk have read bcally1 reply and he mentioned the engine you have is cummins ? not familiar with your model however here in uk the cummins engines i have worked on are on hgv trucks and i am conversant with fual systems not sure if this is related to car cummins engines but the fuel injectors are under the rocker covers and are rocker operated there for req periodic re torque just like tappets the torque is in inch pounds andif left for too long power falls and poor starting due to injectors not atomising correctly so if new injectors and seals fitted ? make sure the injectors were re torqued as to each cylinder firing order and reset tappets at same time all above as i have said is the cummins engines here in uk trucks and not sure if same fuel system pump/injectors are same in the vehicle you have ?

  • Richard Scordino May 11, 2010

    one other thing... make sure your battery if fully charged and the engine is turning fast enough... diesels don't like to start if turned too slowly!

  • Richard Scordino May 11, 2010

    If a specialist went over it already, was it running when they did that? If not, why did they "abandon" the job?? How was it running before this happened?
    If you want to "play" with fuel timing yourself, make sure you mark where everything was so you can return to that point if need be.

×

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

    Governor:

    An expert whose answer got voted for 20 times.

  • Expert
  • 133 Answers

It could be that one of the injectors is bleeding off pressure not allowing enough fuel pressure to start. the 5.9 and 6.7 cummins need at least 2000 psi to start

Posted on Jan 08, 2009

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 68 Answers

Before removal of the fuel injection pump, I am assuming that u checked to see which fuel line was for which cylinder on the fuel injection pump. Well if this was done, place ur #1 cylinder on compression and at the sametime spill time ur fuel injection pump so that #1 will be the next outlet to dis-charge fuel. After this is done, insert the fuel injectrion pump, and ur job is now complete. IF ur front cover is off, there are usually markings on the gear of the fuel injection pump in order for the markings to be alligned

Posted on Jan 08, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

1993 Laredo. Does it have two fuel filters?


are you on wrong forum, Grand cherokee is it?
the XJ jeep is not a ZJ jeep. which is it, the big GRAND ZJ?
what a great question, actually cars with EFI all have 3 filters...
sorry to shock you.

1: the fuel sock , below the pump , to catch loose golf balls. LOL.
dead bugs, etc.
2: the pump output line has a filter., all do, can be in tank (newer cars) or just outside (did you look first or post first) bingo!
3: then each injector has 10 micron size screens. the above keeps these clean, saving $120 for injector service and labor R&R.

and what engine, not posted engine size on engine questions
the fuel system matches ENGINE type, on all cars made.
4.0L engine ????

ive owned both a grand laredo and not grand laredo 1988 to 2010

if not grand see this XJ car.
called just a Cherokee here. 1993
http://www.morris4x4center.com/knowledge-base/index.htm?utm_source=cj#service


the grand is called a ZJ
also on same page and both are LAREDO's

the book has a fuel chapter.
read that. for free.

Dec 08, 2015 | Jeep Cherokee Cars & Trucks

1 Answer

2001 grand cherokee laredo-4.0L i6 Suddenly will not run-cranks fine. when I spray some starter fluid on the air filter, it will start immediately and will run for 2 or 3 seconds. I checked the fuel...


Have you tried reading the trouble codes from the ecu to see what's actually gone bad? A bad crank sensor will not allow the ecu to pulse the injectors and spray fuel.

Sep 09, 2011 | 2001 Jeep Grand Cherokee

1 Answer

Diesel Injection pump for Jeep Cherokee


The diesel injection pump is responsible to deliver the diesel to the engine and to control the speed of the engine by matching the fuel output requirement of the engine. You can get Diesel Injection pump for all models especially for your Jeep Cherokee at http://www.dieselpartspros.com/diesel-injector-pump.asp

Jun 03, 2011 | Jeep Cherokee Cars & Trucks

1 Answer

I have the exact same problem with my HZJ75, have had injectors and pump reconditioned, checked glow pluga and pre-heater timer, all ok...yet still a struggle to start?? PLEASE CAN ANYONE HELP.


I thing you repaired old injection pump and injectors
Have you check the pressure from the pump can open the injectors?
I-loose the all injector main pipe from the injection pump only injectors side
2-try to crank the engine just start while engine moving if you see diesel pressure where you loose means injection pump looks good, try to fixed all the pipes while engine cranking if the engine refuse to star injectors needs to resit correct opening pressure.
3-check the injectors pressure follow instruction manual book.
4-Check is any leaks all connections.
5-Check engine compression.

good luck

Feb 04, 2010 | 2001 Toyota Land Cruiser

1 Answer

Where is the location of the FUEL CUT SOLENOID VALVE ON A 99 IZUZU RODEO,AND WHERE CAN I BUY ON?


i gather this is diesel engine.
the fuel cut solenoid is on the rear of the injector pump (left side of engine) there were a couple of different injector pumps some had 2 solenoids on pump but one is fuel cut solenoid.
can be purchashed from dealer,diesel injection service centres and several different spare parts outlets.

Jul 05, 2009 | 2001 Isuzu Rodeo

1 Answer

Need the timing marks for a 3.1 td 5 cyl diesel injection pump


isusu engine?? have you looked for a 8mm hole in timing gear that corresponds with a hole on plate behind then lock it in with a bolt ,remove bolt after tightening belt .DONT FORGET THIS ???.....if you cant find anything do it with no timing marks easy --- piston no 1 at tdc valves closed spin pump till fuel comes out of no 1 injector feed and lock it all together,indirect diesel is 6/8 ,,,,,direct injection is 12/16,,,,and turbo is 18/22 btdc

Dec 13, 2008 | 2001 Jeep Grand Cherokee

2 Answers

I have a 2000 Triton 2.8 diesel mk 4wd regularly serviced that blows black smoke constantly under power & uses excessive fuel


does your regular service includes the injection pump being brought down for cleaning and maintenance?

it is an injection pump problem. inside the injection pump are valves and strainers that are not accessible for regular users. they could only be cleaned or replaced by these people who work with injection pumps and they would calibrate the injectors also so that it would not be blowing black gas and uses excessive fuel.

tnx 4 using fixya,

drcool

Sep 13, 2008 | Mitsubishi Pickup Cars & Trucks

Not finding what you are looking for?
1995 Jeep Grand Cherokee Logo

611 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

61168 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

Are you a Jeep Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...