Question about 2000 GMC Jimmy

2 Answers

2000 jimmy will crank but wont start fuel pump is pushing fuel through thr filter if i put a little gas in the air intake it fires up till it burns that fuel off. i can hear the fuel pump coming on and the filter is not clogged so what do i try now

Posted by on

2 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.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 4,088 Answers

The first check is for fuel pressure on the fuel rail which is just above the injectors. The rail has a pressure test port that looks like a tire valve, and you can rent a test system that reads pressure (preferably running), but should read 40 to 50 PSI. Anything much lower means a worn out pump or defective pressure regulator. The check engine light should be on, so a scanner read of the codes would be in order. If the fuel pressure seems to be fairly high, the prime suspect for non-operation of the injectors is the crankshaft/camshaft sensor may be defective or it's connector is loose. Hope this gets you going!

Posted on Nov 17, 2009

  • 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
  • 67 Answers

You need to know what the fuel pressure at the fuel rail is (you can measure fuel pressure with a cheap gauge from harbour freight tools) it should be between
50-60 psi if not then the pump must be replaced
(gm replacment pumps are lifetime warranty )

Posted on Nov 17, 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

1999 GMC Jimmy won't start. Tried adding little gas into butterfly at air intake. Sounds like trying to fire a little. I took the distributer cap off. Cleaned contacts. Still won't start.


1999 jimmy doesn't have a carb. has fuel injection . From what you have typed here i would suggest you take your vehicle to a qualified repair shop !

Dec 14, 2016 | 1999 GMC Jimmy

3 Answers

Car wont start


may have a air blockage in fuel line take one of the plugs out and add couple drops of gas try again.

Feb 09, 2014 | 1996 Buick Park Avenue

1 Answer

Engine cranks and tries to start but wont


I would first pour some gas in intake if it fires or runs a little could be fuel filter or fuel pump.if it don't fire pull a plug out and crank see if theres spark that's where id start

Oct 09, 2013 | 1992 Isuzu Trooper

4 Answers

I ran outta gas on my 1998 chevy silverado v.6 vortec. i put more gas in it and pumped the accelerator a few times and it still wont start. how can i fix it is it simple


Best way to fix it when you run out of gas is this. Because you ran out of gas, means your fuel filter is out. When you run out of gas, you end of getting like a air blockage in the line. Now, professional way is to take fuel filter off and fill with gas and put back on, BUT i will tell you a back yard mechanic secret way. Is get a can of starting fluid ( you can get at any auto parts store) and while someone is in side the Pickup, have them ready to turn the key. You are outside with the hood up, and you will be spraying a little bit of the starting fluid in the air intake of directly in carb area ( if carborated) but just spray into air intake. Have them crank the engine, at same time you will spray starter fluid in air intake, just a couple of quick sprays. You will notice it will start and maybe die again. That is normal, you might have to do this a couple times to get things flowing. HOWEVER, what normally happens when you run out of gas, the fuel filter picks up all that junk that has been gathered in the bottom of fuel tank and it has clogged your filter. FOR SURE, if you replace your fuel filter, it will solve this problem. Thank You, and I hoped this helped you.
mc1bean_100.jpg

Jul 30, 2011 | 1998 Chevrolet C1500

3 Answers

We have a 1991 gmc jimmy we want to know what would cause the fuel enjectors to not fire on cold start. but we prime the motor with a little gas the motor will start and the injector will start spraying...


It sounds like an air lock or a fuel pump issue. firstly get the filter changed and bled through this might help. if the problem persists check the pump.

Regards

Dan

Jan 31, 2010 | 1991 GMC S-15 Jimmy

1 Answer

2000 jimmy will crank but wont start, fuel put is


Then it is the fuel pump. Can you hear the fuel pump come on if not that is what it is. That is why when you put fuel in the intake it started. Good Luck.

Nov 10, 2009 | 2000 GMC Jimmy

1 Answer

I have a cadallic escadale. It will turn over but wont start.


The fuel pressure should be 60 to 65psi in your system with the engine not running and fuel line primed, (ignition key's to the run position). Once engine is running the fuel pressure should drop by 5psi, change the fuel filter and recheck the fuel pressure at the shredder valve. it's known for the fuel pump to fail when the gas tank runs low or out of gas, the pump will end up burning it self out since the gas is what keeps the electric fuel pump cooled. The other thing to is putting gas through the top of the throttle body to start the engine on the SEFI is a NO NO, well a BIG NO NO. it's been know for the gas in the intake to catch fire and burn up the poppet valve in the injection system causing the replacement of the fuel injection system. Keep me posted and good luck, be gald to help you get your truck running again for the july 4th. OH and it was not mentioned but did the fuel filter get replaced???

Jul 01, 2009 | 2000 Cadillac Escalade

1 Answer

Truck won't start every time but probally 95 percent of the time.


Yep fuel pump put a filter with it for peace of mind. Pump is in the tank drop tank remove round access hole replace pump go to town. gl dc

Jun 22, 2009 | 1996 Chevrolet S-10 Pickup

1 Answer

2000 gmc jimmy wont start fuel pump comes on and cuts off but will not start.I have changed the fuel filter and that did not work. Is the pump not building the pressure it needs to start or would my...


the fuel pressure if leaking could cause this the regulator is located under the intake plenum but you should smell gas .if you dont then most likely the pump is bad ,the pump will come on for 2 seconds when the key is on then go off it will not stay on with just the key on only when you crank it will it .so have your fuel pressure checked with a gauge.

Mar 22, 2009 | 2000 GMC Jimmy

1 Answer

97 jimmy wont start


If it starts with starting fluid, this means the firing and electrical is fine,however, its not getting fuel. I suggest trying the fuel filter first,but, its probably going to be the fuel pump.

Dec 29, 2008 | 1997 GMC Jimmy

Not finding what you are looking for?
2000 GMC Jimmy Logo

333 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

75235 Answers

Freddy

Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

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

Answer questions

Manuals & User Guides

Loading...