Question about 1985 Chevrolet K2500

1 Answer

No power to 6.2 diesel fuel pump

My motor has been running sluggishly for a couple of weeks, then it quit. Whe you turn the key on, the fuel pump is supposed start before you turn the motor over. Nothing on the pump. no power to the pump, and no ground to the pump. I tried this with the key on, and also with someone else turning it over as I held the tester to the pump wires. I ran a live feed, and ground, both from the battery, and the pump will pump. A wiring diagram would be nice,but also does the live go to a relay, or fuse? Even so, that doesn't explain no ground. I am stumped. Lots of help would be apprciated, even a diagram.

Thanks so much

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Try finding a good ground, first, if you're still not getting voltage, check the fuel pump relay under the hood.

Posted on Jan 30, 2009

Ad

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 Mechanic 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 repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

We have a no start issue and appears no power coming to fuel pump


whe you turn the key on power to pump only comes on for a second unless the car starts then it runs continually

Dec 18, 2017 | Cars & Trucks

2 Answers

Why will car not start from key? Just turns over until battery drained, seems too sluggish to start


Has the fuel pressure been tested? Are you sure the ignition starter switch is ok and doesn't have an open that causes a stall out when the key is released. We do not have the diesel engine in this country so repair info is limited. You need to stop guessing and consult an expert, you have replaced parts that I would never replace for this kind of issue, a total waste of money and your time.

Oct 01, 2016 | 2003 Ford Focus

1 Answer

I have problems sometimes when I start the 2005 6.6 turbo diesel truck it will just stall out then wont restart unless I pump the top of the fuel filter.


not sure on the model but some diesel have a high and low pressure fuel pump, once could be bad. low pressure push fuel from the tank to the high pressure, the high pressure pushing the fuel into the engine. or a rubber fuel line is bad letting are into the fuel system. look for heavy cracked rubber hoses

Jan 16, 2018 | Cars & Trucks

2 Answers

I have a 1998 nissan pathfinder.it turns over but will not start,what could it be?


The fuel pump may have quit on you. The only way i know how to kinda tell right away is to turn the key to ACC with no radio and no blower running in a somewhat quiet environment and listen for the fuel pump to start pumping. if you don't hear the pump then it could be time for a new one of if your lucky a new fuse for it. If you do hear it pumping then if could also be gas line blockage from whatever debris floating in your gas tank. Word of advice if it turns out to be the fuel pump quit, try to not run your vehicle on empty or below 1/8th of a tank because If the pump starts sucking up air bubbles or anything floating in the tank then it will significantly decrease the life expectancy of the fuel pump. Good luck!

Jun 17, 2013 | Cars & Trucks

1 Answer

Replaced motor, 1st no oil pressure to guage, but motor seems to have pressure,2nd,replaced radiator, drove 6 miles round trip town and back, flushed radiator,then started and ran motor for couple min,...


As to the oil pressure check your oil pres. sending unit for power with a circuit tester while vehicle is running replace if necessary. First check the fuse for the fuel pump if it has powere on both sides when key is on check the fp relay (when you power a relay if you listen closely or put your finger on it you can normally hear or feel it click which is the equivalent of turning on a standard light switch) if none occur replace or if you can access your fuel pump check for power with key on if it has power but does nothing the pump needs to be replaced

Apr 23, 2011 | 1997 GMC Sierra

1 Answer

MY 89 TOYOTA COROLLA 1.6 AUTO MATIC TRANNY CARB MOTOR ACTS FUNNY WHEN I TURN THE KEY OFF . IT ACTS LIKE ITS CHOKING OR SOMETHING .KEEPS IT UP FOR A COUPLE SECONDS ONLY THEN DOES TURN OFF ? ALSO WHEN...


It's called dieseling and it's caused by the self ignition of the fuel in the cylinder because there's a lot of carbon buildup in it. You can either dismantle the engine or use a specialized fuel additive to clean it.

Aug 19, 2010 | 1989 Toyota Corolla 2 Door

1 Answer

1999 dodge diesel 3500, fuel transfer pump


some models dont run when the key is turned on,but when the engine cranks the fuel pump starts running,

Jun 04, 2009 | 2004 Dodge Ram 2500

3 Answers

89 regal won,t start but after 5 or 10 min. runs great


sounds like your fuel pump is going out. One thought might be that the fuel filter is causing enough resistance to over heat the pump. I would check the fule pressure to determine a free flow of fuel.

May 01, 2009 | 1990 Buick Reatta

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

Related Topics:

466 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

77499 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

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

Answer questions

Manuals & User Guides

Loading...