Question about Chevrolet Cars & Trucks

1 Answer

Blazer fuel pump doesn't shut off

1999 blazer new pump, starts ok but pump will not shut off & kill battery

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Expert
  • 34 Answers

Check you relay it may be stock on open possition

Posted on Nov 01, 2012

Ad

6 Suggested Answers

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

Ad
  • 507 Answers

SOURCE: Chevy Blazer 1999,car doesn't keep running after started ,car has Passlock

hmmm, sounds like an ignition switch problem. Not the tumbler/key switch, the ignition switch.

Posted on Sep 07, 2008

  • 7353 Answers

SOURCE: 1999 mercury cougar. won't start...cranks...battery ok.

V6 ? 4CYL? Have you verified SPARK? Did anyone check the "fuel pump inertia switch?" Its in the right front kick panel. If it was a "Anti-theft Issue" the light would be on or flashing.

Posted on Nov 03, 2009

  • 5366 Answers

SOURCE: 1999 chev blazer won't start new fuel pump

So, do you hear the pump buzz on, when key is on? If that's good, then check your ignition circuit: check for spark at a plug. Use insulated pliers, hold end of plug wire 1/4 inch form engine bolt or ground source. When cranked, you should see a bright blue spark. Yes? Try another plug wire, too. No? Try another plug wire. If you have NO spark, could be your coil, coil pack, crank position sensor, ignition module. I would recommend using a diagnostic flow-chart to go through the ignition circuit. That way, you are not replacing unecessary parts_Expensive! Of course, if you have spark at plugs, your ignition circuit is good! Then you have to look further, like your injector circuit. Good luck.

Posted on Oct 30, 2011

  • 5366 Answers

SOURCE: 1999 2door blazer installed new fuel pump 60psi

Sounds like your injectors aren't opening if it holds that pressure. Get a "noid light" at parts store that fits your injector harness connection (just a few bucks). Just pull connector off injector and plug in noid light. When you crank engine, the light should blink rapidly. Try all of them, or at least one on each bank (side).
If light doesn't blink, then check your injector electrical circuit. Power to them is fed through your ignition switch, and the ecm grounds that particular injector at proper time to make injector work.

Posted on Oct 31, 2011

  • 5366 Answers

SOURCE: Blazer 1999 won't start got spark new fuel pump

Pull off one injector connector and use a test light or voltmeter to see if one wire has power with key on.
Power to the injectors is fed through the ignition switch, so with key on, you should have power there. The injector ground is inside the ECM. If you have power, you'll have to diagnose the circuit for why computer doesn't ground the circuit when it should.

Posted on Nov 07, 2011

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

2001 Mercury Sable Intermittent Fuel Pump?


You are right that it could be either component, or something else electrical. The security system will kill the fuel system if the wrong key is used or the system is acting up.
A mechanic would check base fuel pressure with a gauge and also see if the pump is getting power from the relay when it fails to start.

Jun 07, 2013 | 2001 Mercury Sable

1 Answer

1985 chevy blazer s10, replaced mechanical fuel pump, still not gettin fuel to carberator


I have a 1984 S-10 Blazer since it was new
almost 29 years ago

Explain how a new fuel pump doesn't work

I only had that once on my 1965 corvette
A new pump had been assembled with the
diaphragm outside on a couple holes,a quick fix

You must have fuel to the carb & thus you need
to take the carb apart & work on that

So far I found that NAPA is the only source for
a carb kit

Oct 03, 2012 | 1985 Chevrolet S-10 Blazer

1 Answer

Why won't the fuel pump shut off


Fuel pump won't be the cause. Most likely the relay.

Apr 06, 2017 | 2005 Mazda 6

1 Answer

If oil pressure sending unit is bad will it stop fuel pump from working on a 2000 blazer


You should never try a pump without it being in fuel. It uses fuel for lubrication when it is running. If the vehicle doesn't start at all when you first crank it over it is not the oil pressure sender. If you just put the pump in you might want to turn the key off and on several times to cycle the pump then try to start it. If it doesn't start then check fuel filter or check fuel pressure at fuel rail in engine compartment. Is fuel pump cycling at all when the key is turned on? There is a problem with ignition switches on some of these blazers.

Jan 04, 2012 | Chevrolet Cars & Trucks

1 Answer

GMC 2000 sierra pick up 1500 sounds like it wants to start but won't turn over. Battery sounds good so I guess battery and alternator are ok. For several years fuel gauge doesn't work and...


It sure could be. But, first...by "won't turn over" you do mean it cranks at normal speed but won't start?
A simple test of the fuel pump is to stand by tank and listen as someone turns key to on. When first turned to on, your pump will activate for 2 or 3 seconds, pressurizing the fuel system, and then shut off if the engine computer doesn't get a cranking signal. Do you hear it come on? If not, then something's not turning your pump on. If you can hear it buzz on briefly, then maybe it's your filter. Another test: Spray a little starting fluid into your intake manifold (remove the big hose going into intake manifold) while someone tries starting it.If it doesn't fire and try to stay running, then it's probably an ignition problem. But if it does fire off, then you know it's a fuel problem-likely your pump or filter. good luck.

Nov 07, 2011 | 2000 GMC Sierra

1 Answer

Blazer 1999 won't start got spark new fuel pump


Pull off one injector connector and use a test light or voltmeter to see if one wire has power with key on.
Power to the injectors is fed through the ignition switch, so with key on, you should have power there. The injector ground is inside the ECM. If you have power, you'll have to diagnose the circuit for why computer doesn't ground the circuit when it should.

Nov 06, 2011 | 1999 Chevrolet Blazer

1 Answer

1999 2door blazer installed new fuel pump 60psi when tested won't start dump gas in intake starts and shuts off ??????


Sounds like your injectors aren't opening if it holds that pressure. Get a "noid light" at parts store that fits your injector harness connection (just a few bucks). Just pull connector off injector and plug in noid light. When you crank engine, the light should blink rapidly. Try all of them, or at least one on each bank (side).
If light doesn't blink, then check your injector electrical circuit. Power to them is fed through your ignition switch, and the ecm grounds that particular injector at proper time to make injector work.

Oct 31, 2011 | 1999 Chevrolet Blazer

1 Answer

My 1999 Lincoln Continental was working perfect before i put it in storage for six months without starting it. Now in wont start. Has no fuel pressure. Did the fuel pump went bad or is there something that...


You not telling us anything

Is the battery charged & fairly new?
Does the starter even turn the engine over?
Do you have spark & are only missing fuel?
Do you hear the fuel pump run

What engine
Who will be working on the car

How would we know what works & what doesn't
All we do is guess,but need some thing to do that

Aug 04, 2011 | Lincoln Continental Cars & Trucks

1 Answer

My 97 Chevy blazer has a Immobilizer ; doesn't start.


I agree with gasitjr.
I own a 98 blazer. When you try to turn over the engine. Does the engine rotate? If yes,it's not the starter or the battery. When you turn the key into the ON position before it starts can you hear an electric motor noise winding up? If yes , the fuel pump maybe OK but if the pump pressure is bad...blazer wont start. Pump runs about 300 plus labor. I've done it..It sucks

Jan 17, 2009 | 1999 Chevrolet Blazer

1 Answer

Chevy Blazer 1999,car doesn't keep running after started ,car has Passlock


hmmm, sounds like an ignition switch problem. Not the tumbler/key switch, the ignition switch.

Jul 19, 2008 | 1999 Chevrolet Blazer

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

Related Topics:

37 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6918 Answers

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

Answer questions

Manuals & User Guides

Loading...