Question about 1999 Jeep Wrangler

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I have a 1999 Jeep Wrangler 6 cyl, automatic. Everytime I go around a corner or try to accelerate it dies. I was told it could be the throttle position sensor, so I replaced that and it's still

It started with sputtering, when you would accelerate. Now it dies when you turn any corner.

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  • Jeep Master
  • 660 Answers

I honestly had the same problem, and it was oil related. how does the oil gauge react when you are turning corners?

Posted on Dec 11, 2012

6 Suggested Answers

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Posted on Jan 02, 2017

  • 92 Answers

SOURCE: 1998 Jeep Wrangler Sport codes P0121 and P0122

did you check voltage to sensors if you need help with proedure, contact me, or you may try patrs houses on line in how to section.

Posted on Oct 06, 2008

  • 4 Answers

SOURCE: Jeep stalls


I had the same problem... frustrating.

I picked up a repair manual at the parts store. I took off the throttle body and cleaned it with throttle body cleaner spray. I changed the Idle Air Control Valve (idle speed motor) which was very clogged. While I had the throttle body off I also changed the Map Sensor and Throttle Position Sensor. The manual will walk you through the steps. I had never done anything like this before. If I can do you so can you.
My Jeep has never run better. Good Luck

Posted on Jan 26, 2009

inhisname
  • 76 Answers

SOURCE: 98 jeep wrangler 4.0 6 cyl. sputtering/near stalling all speeds

hi april, it sounds like the camshaft position sensor is failing!...question?, does your temperature gauge work normaly?, is there any check engine lights on? if so let me know the code number and i can help ya! good luck, marty

Posted on Jun 04, 2009

  • 2841 Answers

SOURCE: 98 jeep wrangler 4.0 6 cyl auto spits and sputters under load

It can be a problem with one of the injectors. What is odd it that the ECU has not set a code for a misfire. I would have the ECU scanned even if your check engine light is not on. With a misfire the ECU should have set a code on which cylinder is missing. I would suspect one of the injectors is malfunctioning.

Posted on Sep 18, 2009

c17hydro
  • 2984 Answers

SOURCE: when replacing the thermostat on my 98 jeep

Check out the diagram:

1423f4e.gif
The removal of the thermostat from its housing on the 4.0L engine

To install:

  1. Install the replacement thermostat so that the pellet, which is encircled by a coil spring, faces the engine. All thermostats are marked on the outer flange to indicate the proper installed position.
  2. Observe the recess groove in the engine cylinder head .
  3. Position thermostat into this groove with arrow and air bleed hole on outer flange pointing up.
  4. Install replacement gasket and thermostat housing

    CAUTION Tightening the thermostat housing unevenly or with the thermostat out of its recess may result in a cracked housing.

  5. Tighten the housing bolts to 15 ft. lbs. (20 Nm) torque.
  6. Install hoses to thermostat housing.
  7. Install electrical connector to coolant temperature sensor.
  8. Be sure that the radiator draincock is tightly closed. Fill the cooling system.
  9. Start and warm the engine. Check for leaks

WARNING Do not loosen radiator drain **** with system hot and pressurized. Serious burns from coolant can occur.



NOTE Do not waste reusable coolant. If solution is clean, drain coolant into a clean container for reuse. If thermostat is being replaced, be sure that replacement is specified thermostat for vehicle model and engine type.

Posted on Dec 06, 2009

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Jeep stalls



I had the same problem... frustrating.

I picked up a repair manual at the parts store. I took off the throttle body and cleaned it with throttle body cleaner spray. I changed the Idle Air Control Valve (idle speed motor) which was very clogged. While I had the throttle body off I also changed the Map Sensor and Throttle Position Sensor. The manual will walk you through the steps. I had never done anything like this before. If I can do you so can you.
My Jeep has never run better. Good Luck

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How many miles does your vehicle have?

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