Question about 1994 Jeep Grand Cherokee

1 Answer

My 94 jeep grand cherokee is having fuel injection problems i think. During hot days it will be driving along just fine with my foot on the gas and then it feels like(under my foot) a garden hose when you bend it and its trying to get the water through, then maybe 10 seconds later it corrects itself and its fine again. It happens on both hot and cold days but seems to do it WAY more on hotter ones. The check engine light has been coming on lately alot too. I am always up on my fluid levels though. Im wondering if maybe being black has something to do with it or because its over 200000 miles something needs to be replaced. Please help!

Posted by on

  • angelinamenn Jun 07, 2010

    thank you. i really hope its not the catalytic converter. The heat does actually set off the alarm though. when its foggy or colder, its fine but if its over 80 and in the sun, it will go off. Could that be the reason for the whole gas pressure bit too? The whole catalytic converter thing? Not the throttle positon sensor?

×

1 Answer

  • 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
  • 6,982 Answers

By the time you reach that kind of miles, chances are you have one or more engine control sensors that are out of range. Since the check engine light has been coming on, have the codes read (most larger parts stores do that free) It's also possible that the catalytic converter in the exhaust system is beginning to plug up. if so that acts as a restriction to flow and can seriously hurt performance.
Vehicle color does not have a lot to do with the problem though some items such as door switches can act that way in darker vehicles, but there needs to be a problem there already for the temp change to affect it.

Posted on Jun 07, 2010

Testimonial: "thank you"

  • Richard Scordino Jun 07, 2010

    All components are expensive. I never replace anything without doing some testing first. When I mentioned sensors, I actually wasn't thinking of TPS but more along the lines of O2 or MAP sensor. However, they all work together and good tests are the only real way to determine what's going on. You could also have a partially obstructed fuel filter but your symptoms don't exactly match.
    With computerized systems the computer will often adjust to a malfunction and cover up the real problem so, in order to find what's wrong, you need to test. I cannot do that from here!
    Code scan, follow up with testing with a digital multi-meter and a decent manual such as chiltons.
    I do attempt to point people in the right direction even if I can't give you a definite item to replace.
    Ratings are often nice though!


×

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

I have a 1994 jeep grand cherokee and it always starts up, but sometimes it just shuts off randomly while I'm driving and after a few minutes of rest turns back on, the battery will still be worki


Install a new crank shaft sensor. I had the same problem with my wife's Jeep. It would run fine fore days at a time then quit. When the crank sensor goes out their is no spark or injection of fuel into the engine. This is a Hall Sensor. They can be intermittent, and affected bu heat. If your Jeep will not start, try freeing the sensor and see if it starts. Cold Freeze is used in electronics to test

Apr 17, 2013 | 1999 Jeep Grand Cherokee

1 Answer

Ran out of gas and now wont start 1994 jeep grand cherokee


check the installation of fuel injection or carburetor your...

Jan 16, 2012 | 1994 Jeep Grand Cherokee

1 Answer

Will not stay running like running out of gas i have a 94 jeep cherokee


i have a 94 Cherokee limited runs but when it gets hot it dies and will not start threw the winter i didn't have this problem now that it is hot out it will not stay running put a coil pack on cause it looked bad new fuel pump n filter radiator and thermostat we are at a loss the is plenty of fuel in the rail. it turns over but just will not start please anyone any ideas

Jul 16, 2011 | 1994 Jeep Grand Cherokee

2 Answers

94 Jeep Grand Cherokee is hard to start. If I turn the key on and wait several minutes till I hear the fuel pump kick on, then it'll start right up.I have replaced the fuel pump, fuel pressure regulator,...


Has any one soled this yet???????? Because I have the the same prob. but mine is only when it is could out blow 65 it will start but I have to keep my foot on the gas like a carb with no choke

Dec 06, 2009 | 1994 Jeep Grand Cherokee

2 Answers

Is 2002 jeep grand cherokee fuel economic?


most likely not, but you can improve it by keeping your foot off the gas and brake , so to speak 

Sep 27, 2009 | 2002 Jeep Grand Cherokee

1 Answer

93 Jeep Grand Cherokee Won't start


The crankshaft position sensor was seriously problematic in those old jeeps. It's located towards the top of the bell housing slightly to the driver's side I think.

Apr 15, 2009 | 1994 Jeep Grand Cherokee

1 Answer

1997 Jeep Grand Cherokee. Stalls out,engine quits running


since its a 1997 your jeep has EFI, electronic fuel injection. The most probable reason for your troubles would be the injectors or a problem with the computer controling them, not allowing enough gas to be pushed into the cylinder causing stalling or lack of power, also too much gas iin the cylinder can lead to back firing and stalling. This would also explain the reason it takes so long to start back up some times, all the excess gas in the cylinder is flooding the motor and u have to wait till the gas disipates till the engine will turn over.

Mar 21, 2009 | 1997 Jeep Grand Cherokee

2 Answers

1995 Jeep Cherokee chugging - minor backfiring won't excelerate


Sounds like it is running lean because of fuel not getting through or air getting in. Taking foot off pedal means the air fuel ratio changes and the engine can run ok at low revs. Has the hot wire on the fi been checked. The last time this happened to me was in a alfa when the crud in the tank blocked the final fuel filter into the carb. The fuel system has several filters so check them all.

Sep 11, 2008 | 2006 Jeep Grand Cherokee

Not finding what you are looking for?
1994 Jeep Grand Cherokee Logo

249 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

75051 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7726 Answers

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

Answer questions

Manuals & User Guides

Loading...