Question about 1998 GMC Jimmy

2 Answers

98 gmc jimmy loses power to a stop

Replaced fuel pump,fuelfilter,oxygen heater sensor,cat.converter. Runs fine for awhile maybe 20 mins then acts like its running out of gas. Stop the truck turn off key restart runs fine, then same thing again, like it looses fuel pressure again. Turn it off start all over again like it resets im lost gm says needs fuel pump its new isnt there a simpler solution why i can restart and run fine again and again?

Posted by on

  • dawgone27 May 22, 2009

    Thanks guys gonna try the MAF then pull the pump and return the malfunctional cheap one. Get a real one let you know thanks.

×

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 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.

  • Expert
  • 202 Answers

The fuel pump could actually be malfunctioning. and the reason that you are able to restart and drive again is because when you turn the key on it is allowing the fuel pump to pressureize your system. but while the fuel pump is continuasly running it is loosing the fuel pressure. this is common on the cheap fuel pumps. i am not sure about were you got the fuel pump from but in all of my experiances with this problem i find that the fuel pumps have been boughten at a napa store.
i hope this helps you out.
and you could attach a fuel pressure gauge on to the fuel rail and start the car and watch the pressure to see if it is droping.

Posted on May 22, 2009

  • 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.

    President:

    An expert whose answer got voted for 500 times.

  • GMC Master
  • 3,433 Answers

Chk Mass air flow sensor (MAF) first sensor in ducting coming out of air filter.. Make sure your air filter is clean. Good luck. After all that replacing, I would be too sick to even sit in it.

Posted on May 22, 2009

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 1998 g_m_c jimmy 4.3 liter when it's


check to see if the cat converter is partially plugged if you can just unhook converter and run see if power is good if ok replace converter you can also do an exhaust back pressure test if you have the back pressure gauge but if you have replaced fuel filter and all i would say that it is quite possible that is your problem

Sep 18, 2014 | 1998 GMC Jimmy

2 Answers

Ford 460 loses power then dies. Starts back up. Idles fine.


It sounds like you might have a clogged catalatic converter on the exhaust system.

Apr 23, 2010 | 1999 Ford Super Duty F 450

2 Answers

1993 jimmy vortec keeps stopping


change he fuel pressure regulator

May 13, 2009 | 1993 GMC Jimmy

2 Answers

98 Elantra that just stops running


check to make sure the catalytic converter is not clogged,easy way to test is remove the oxygen sensor before the converter and see if the engine still runs if so cat is probably clogged,get back to me if you need more help,please rate my fix as i strive to be the best Thanks Ray

May 09, 2009 | 1998 Hyundai Elantra

1 Answer

1997 gmc jimmy


Sounds like the cpi injector assembly. The fuel pressure regulator may be leaking. Or the poppet valves on the injectors may be sticking or shot. I replaced almost every part on my truck and that is what it ended up being the whole time. It's a common problem on these models. Hope this helped

Mar 01, 2009 | 1997 GMC Jimmy

5 Answers

MAF Sensor and 02 Sensor


Replace the fuel pump with another one.
This is a common issue.
Don't use an "aftermarket" pump; buy one from Chevy.
I just had this exact same issue in my shop. The truck would run for a bit, and then just stop. I had the truck towed in, and the fuel pressure was good. Drove it for a while, with the gauge hooked up and taped to the windshield, I could see the fuel pressure start to drop off. I told the owner that she needed a new fuel pump.
The owner told me that the pump was 2 months old. I went ahead and changed it anyway. A new fuel pump cured the problem.

Testing the MAF and the O2s is not going to tell you anything. A failure, an open or a short would set the check engine light.
Please feel free to get back to me if you desire any further input. Thanks for choosing FixYa for assistance.

Jan 25, 2009 | 1999 GMC Jimmy

2 Answers

1995 gmc Jimmy


maybe bad ignition module or coil.. when they get hot sometimes they wanna die...

Sep 16, 2008 | 1995 GMC Jimmy

1 Answer

1986 GMC Jimmy fuel problem


is the muffler sound quieter if so it is the converter stopup

Jul 16, 2008 | 1986 GMC Jimmy

1 Answer

Van runs great until it heats up. generally about 15-20 min.


i would check to see if your fuel pump is working properly maybe first try replacing the fuel filter and running a fuel treatment.

May 23, 2008 | 1996 Nissan Quest

Not finding what you are looking for?
1998 GMC Jimmy Logo

426 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

75797 Answers

Freddy

Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22114 Answers

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

Answer questions

Manuals & User Guides

Loading...