Question about 1986 Jeep CJ7

2 Answers

86 CJ7 will run but will not idle.

Start up cold, runs till choke goe ogg. It will run as long as you have your foot on the gas pedal, but come to a light or stop sign, it stops running. Please help, its hunting season!!

Posted by on

  • Roberta Smith
    Roberta Smith May 11, 2010

    choke needs adjustment... not sure if it's a mechanical choke or electronic. and you might even want to check the air filter as well
    How is it after it warms up ?


    Robert



×

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 101 Answers

If the timing is ok and you have some fresh gas and plugs in her. My best is that the the catylic converter is cloged, the step carborator on this jeep often clog the cats up.I have samew truck. I went and put on a new weber carb!

Posted on Dec 21, 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.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 962 Answers

Clean the idle control valve. located just inside the hole where you remove the aircleaner duct work. use brake cleaner or carburator cleaner.run at about 1200 rpms and spry directly into the valve.

Posted on Dec 19, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Sputters and dies on cold start, significant drop in gas mileage.


You need to rebuild the carburetor or clean the choke linkage and make sure the choke valve closes cold.

Nov 12, 2013 | 1985 Isuzu Pickup

2 Answers

When the engine starts it goes to 2000 RPM immediately


first thing clean throttle body,good clean.Maybe TPS sensor or IAM.

Apr 01, 2013 | 1999 Jeep Wrangler

1 Answer

Wont stay running when cold where is choke adjustment 93 ford tempo 2.3


there is not it is fuel injected, you are looking for the idle air control valve . it is located on the throttle body

Nov 12, 2012 | Cars & Trucks

1 Answer

I have 1995 Mercury Mystique, when I started the engine in the morning thr engine not running smoothly but it shakin and the odometer says the engine rounded below 500/min,then I have to press the gas...


i think this is a simple case of the cold start temperature sensor not working so you have no choke to speed the idle up when engine is cold ,where it is located i have no idea and never seen this vehicle as iam a europeon mechanic .

Oct 28, 2011 | 1995 Mercury Mystique

2 Answers

Won't start when cold


hello wyatt...... Is your jag.built with a carburetor or fuel injected?
Carb, your choke is not set to close when cold, and should be set. When set, it also sets a cam that keeps the engine running fast. Then when warm, you hit the pedal and the cam moves, and the engine speed goes to normal. Unless the choke is set, the engine cannot keep running, as it tries to run on cold gas and it can't run good on cold gas. It needs more gas, therefore, and the choke makes more gas go into the engine.

Fuel Injected, the computer should adjust the amount of gas your car is getting when cold. If not, the coolant sensor might be bad.
The coolant sensor senses the cold engine and tells the computer to add more gas. Once the engine is warm, the coolant sensor tells the computer to put the gas to normal.
So, if the sensor is not working, the engine will try to run normal, and if cold, it can't. Joe Thanks for choosing Fixya!

Dec 24, 2010 | 1985 Jaguar XJ6

1 Answer

Car will not start without pressing gas pedal to keep idle speed up. If I keep idle at 900 RPM or higher it runs as long as foot is on gas pedal. It then stalls out when I take foot off gas pedal. No...


Have the idle bypass valve checked, also called idle air control valve.
If that valve is stuck in the closed position, it's not allowing the fuel to bypass the throttle plate to keep it idling, resulting in stalling, but will keep engine running if the pedal is pushed down.

May 14, 2010 | 2000 Toyota Camry Solara

2 Answers

Sometimes to start you have to give it a lot of


Hi
This sounds like a cold start system fault, which is a number of things.
  1. Cold start temperature sensor not operating correctly so the cold start system won't work when the engine is cold.
  2. The idle needs to be set to the correct RPM of the engine when warm, if it is idling ok when it is warm then this wont be the problem.
  3. Spark Plugs are worn and need replacing.
Most case's its the cold start system not operating correctly and if you have a good workshop to take it too they should pick this up quite quickly. Hope this helps, let me know how you get on.

Apr 03, 2010 | 1996 Toyota Corolla

1 Answer

1996 eclipse w/ 4 cyl / 5 sp trans...simple, plain model. When cold, starts and then stalls as soon as you lift your foot off the gas pedal.. Continues like this until engine warms up, then all's AOK (...


remove hose going to intake,clean intake plenum with a rag soaked with cleaner,do not spray into plenum because you will damage the iac motor,once you remove all the build up inside the housing it should idle-good luck

Dec 15, 2009 | 1996 Mitsubishi Eclipse

2 Answers

Wont hold idle will start with foot depressing gas pedal will run with foot on gas but stalls when foot removed


Check and clean Idle air control valve. Make sure its responding to signal as well. Also make sure ther are no vacuum hoses disconnected. This may not be a "cure" but it's a good place to start.

Apr 14, 2009 | 2001 Jeep Grand Cherokee

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

Related Topics:

364 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

70387 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22041 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6880 Answers

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

Answer questions

Manuals & User Guides

Loading...