Question about 1992 Jeep Cherokee Sport

7 Answers

1992 Jeep Cherokee starting problems

Jeep has the fuel injected 4.0 inline 6, manual transmission. To start it you need to have the gas pedal all the way to the floor. what might I look at to solve this?

Posted by on

  • 5 more comments 
  • prstorsved Jul 22, 2008

    I would like to get other opinions on this problem. I have been told by others that the injectors are fine along with the fuel pressure being at the correct level.

  • prstorsved Jul 22, 2008

    The airway is clear and once the engine is warmed up, it idles just fine.

  • prstorsved Jul 22, 2008

    when it starts/run, how is the idling; IDLES JUST FINE
    does the exhaust smell a bit different (too rich); NO STRANGE SMELLS
    when the engine has warmed up, same problem or easier to start; SAME PROBLEM
    any recent work/repair done on the engine; NO
    any new component or aftermarket device installed; NO

  • prstorsved Jul 22, 2008

    It is hard to start when the engine is either hot or cold

  • prstorsved Jul 22, 2008

    I know that the throttle positioning sensor would do that so that was one of the first things I replaced

  • prstorsved Jul 22, 2008

    Hmmmm. I have replaced the crankshaft sensor, but I did not know of a cam sensor.

  • prstorsved Jul 22, 2008

    Is there any way to see all of the suggestions that have been offered instead of the most recent one? Thanks for all of your help

×

7 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Guru:

    An expert who has written 7 tips or uploaded 3 video tips

  • Master
  • 1,342 Answers

Found this in a Yahoo post:

Check to see if you are losing prime pressure from fuel pump.
ASD relay kicks for a few seconds when ignition is turned on and fuel pump primes up pressure to injectors. If you have a leak down from the pump this few seconds is not enough to get enough pressure to build. When engine is turning over, ASD relay latches on and fuel pump runs therefor building enough pressure to injectors on the second start. The fuel rail has a port to hook up fuel pressure tester to test this issue. If this is the issue, check valve in pump is failing.
GOOD LUCK and happy motoring

Posted on Jul 22, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 2,071 Answers

Remove and clean the idle air control motor and channel and check for a leaking / defected fuel pressure.... disconnect the negative battery cable for 1 minute and enjoy driving again...

Posted on Jul 22, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 2,028 Answers

The throtle positioning sensor will cause this problem.

Posted on Jul 22, 2008

  • Ryan Rogers
    Ryan Rogers Jul 22, 2008

    How about the cam sensor. Have you checked or replaced that?

  • Ryan Rogers
    Ryan Rogers Jul 22, 2008

    You should be able to go to the post at the home page and scroll down through the solutions.

×

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Jeep Master
  • 329 Answers

I could be a problem with the idle air control valve. is it always hard to start or only when hot or only when cold?

Posted on Jul 22, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 6,966 Answers

Hi,

Based on your descriptions/posting, foremost suspect would be the air/fuel mixture. Possible fault could be in the:

  1. air intake, torn filter or loose air filter housing.;
  2. leak in the vacuum lines/hoses;
  3. EGR valve.
Additional information pls on:
  1. when it starts/run, how is the idling;
  2. does the exhaust smell a bit different (too rich);
  3. when the engine has warmed up, same problem or easier to start;
  4. any recent work/repair done on the engine;
  5. any new component or aftermarket device installed;
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Posted on Jul 22, 2008

  • Louie  Role
    Louie Role Jul 23, 2008

    Hi again,

    Appreciate the additional information. Based on your descriptions, other areas you may want to check/try would be:


    1. leak in the fuel pressure regulator (try clamping the fuel return line with visegrips while starting);

    2. Idle Air Control Motor;

    3. Coolant Temperature Sensor (CPS).
    Cheers.


×

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 3,037 Answers

The gas pedal allows air to the engine, check to make sure that the air intake isn't clogged at all and that the filter is still clean. I would replace the filter unless you recently did so. How does it idle?

Posted on Jul 21, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Jeep Master
  • 19,396 Answers

It is a dirty injector problem, go to a garage and have injection checked.

Posted on Jul 21, 2008

×

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

92 jeep cherokee will not start when hot,starts when you hold the gas pedal to the floor ? Then runs ruff cuts off.


replace the fuel filter then check the air/fuel mix needle valve according to manufacturer specs. Sounds like you have way to rich a fuel mixture.

Aug 08, 2014 | 1992 Jeep Cherokee Sport

1 Answer

When i start my car, i have to push the gas pedal down for about three minutes for it to start


its fuel injected so your pedal shouldnt have anything to do with why its taking 3 min to crank.if it finally starts it might be a bad fuel pump or crank position sensor.

May 22, 2012 | 1998 Jeep Grand Cherokee

1 Answer

I have a 94 Jeep Cherrokee Sport with a 4 liter inline 6. With fuel injection and manuel 5 speed. It starts and runs good at idle, but when you press on gas it spitts and spudders. Then eventally spudders...


Have you replaced the crank sensor? There isn't really any way to test it, however it isn't expensive and it is fairly easy to replace. Good luck.

Sep 25, 2010 | 1994 Jeep Cherokee

1 Answer

What is the throttle position sensor? my 2003 jeep delays starting unless i pump gas pedel. delay start is around 5 sec of grinding starter, with gas smell. fuel filter and pump are ok.


Believe it or not pumping the fuel pedal is no help. This is a fuel injection system not the old carburetor type. the throttle position sensor is a sensor to tell the computer were the fuel pedal is at it is sensing how much you are pushing it to send fuel to the throttle body.

does sound like you have a leak down problem after sitting a while you may still have a fuel pump concern

May 20, 2010 | 2003 Jeep Grand Cherokee

1 Answer

Jeep won't start


we had a jeep with similar conditions at my college and we found it to be the crank sensor and it started and continued to run so test the connection and see if there is 5 volts going to the sensor

Feb 26, 2010 | 1992 Jeep Wrangler

1 Answer

Wont start 1996 jeep grand cherokee laredo inline six4.0 fuel inj


The first thing I would do since you think it was flooded is to replace the sparkplugs, sometimes if a spark plug has been washed out with gas you cannot get it completely dried out. After you replace sparkplugs try to start the engine. If the engine starts I would still recommend that you change your oil because of fuel saturation. If your engine fails to start I would suspect that you have a bad crankshaft position sensor as it is known to give problems. The crankshaft position sensor is located on the top of the transmission bell housing on the drivers side.

Oct 02, 2009 | 1996 Jeep Grand Cherokee

1 Answer

I have an 89 Jeep Cherokee and it will crank over but not start


O2 sensor will not do that. Check the basics...do you have fuel...Do you have spark? I would make a bet on it either being a crank position sensor or fuel filter. Next good guess is the ignition coil. Check these items (in order) and see what you find. Test specs are found in any manual. (if you need specifics I can give them to you. You will need a decent volt/ohm meter to test.

Apr 04, 2009 | 1989 Jeep Cherokee

3 Answers

My 1989 Jeep with AW4 transmission does not downshift or ?


This model has a tranny computor under the dash on the right side screwed to the bottom of the dash. If I remember correctly, there is also an inline fuse attached to the harness. Check the fuse.

Feb 12, 2009 | 1989 Jeep Cherokee

3 Answers

1997 jeep cherokee-fuel injection problems


Try replacing the Oxygen Sensors... I had the same problem and replaced my Oxygen Sensors and I haven't had any problems since.

Jun 29, 2008 | 1997 Jeep Cherokee Country

Not finding what you are looking for?
Cars & Trucks Logo

386 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...