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Blazer Fuel Pump Problems

100 messages,  Last post on Oct 14, 2009 at 1:24 PM

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What is this discussion about? Chevrolet Blazer, SUV


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#31 of 100
Fuel Pump by wuddarush
Jun 08, 2007 (8:16 pm)
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Replying to: repairdog (May 06, 2007 2:49 am)

My 98 chevy blazer was running fine. I drove it to work and when i tried to start it to leave it would not start. It sounded like it was the fuel pump was not pumping. I turned the key on to listen for the HUMM noise of the fuel pump and i couldnt hear it. A friend from work told me to try banging on the bottom of the gas tank so I went out and banged all along the fuel tank with my hand/fist and then i got back in and turned the key , then i heard the HUMM kick in and long behold it started right up. Not sure if this might help anyone but it sure helped me to get it back home. Still probably need to replace the fuel pump but at least its not stuck at work.
#32 of 100
Re: Fuel Pump [wuddarush] by repairdog
Jun 09, 2007 (5:45 am)
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Replying to: wuddarush (Jun 08, 2007 8:16 pm)

Correct, pump going or bad connector on top of tank.
#33 of 100
Blazer won't start!! HELP!!! by blazer68
Aug 13, 2007 (9:39 pm)
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My 2000 Blazer was running fine when I went to work a couple of days ago. When I got in it after work it wouldn't start. I couldn't hear the fuel pump running so I assumed it was the pump. I took the tank apart and got that same pump running for a day and then it happened again. It rolls over but will not start. I put some primer in the air intake and and it ran like that. I replaced it with a new pump and a new fuel filter and now have alot of fuel pressure but it still won't start. I am getting fuel pressure up to the engine at the pressure check valve area. I have tried everything I can think and now I am lost as to what to try next. Does anyone have any suggestions?
#34 of 100
Blazer started!! by blazer68
Aug 15, 2007 (2:28 pm)
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My Blazer started but I'm not sure for how long it will run. Last time I got it running for only about 24 hrs by replacing the connector that accepts the clips from the outside and the inside of the tank. This time I installed new wires (black and gray) inside the tank, from pump to the connector that sits beside the fuel lines and I am using the same pump that the Blazer first broke down with. I still don't quite trust it for long distance driving because I'm afraid of getting stuck out in the middle of nowhere.(I live in the sticks in the far Canadian North). Hard to find parts up here so I always have to trouble-shoot every problem before buying expensive parts. I hope it stays running from now on. By the way, is anyone reading this?
#35 of 100
Fuel Pump problem? 2000 4.3 V6 blazer by ixxixxi
Sep 05, 2007 (2:28 pm)
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I have noticed lately, my blazer seems like its starving for fuel. one case, when I get below half a tank, i try to accelerate, but the RPM goes down and it doesnt even want to move. Or when I go up a hill, I cant even keep up with the speed limit! I changed fuel pump in tank 2 months ago. I changed fuel filter a month ago. When I fill up the tank completely, then it seems to do ok, sometimes. I had to fill up today at 3/4 of a tank and it still decided to not give any power, and yesterday it dipped below 1/2 tank and had to pull over on the side of the road and get a 5 gal can of gas to fill it. Is there another fuel pump besides the one in the tank that may be going bad? when i search fuel pumps on google, it shows me a different one that goes in the tank. its getting frustrating not being able to move on the raod and fueling up all the time. Any help would be wonderful!
#36 of 100
Re: 97 blazer fuel pump issue [jfleming1] by jlflemmons
Sep 11, 2007 (10:01 am)
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Replying to: jfleming1 (Jan 14, 2007 5:41 pm)

Something that specific may be a dealer only item. Their books (or computer screen) should show the part.
#37 of 100
Re: Fuel Pump [wuddarush] by jlflemmons
Sep 11, 2007 (10:05 am)
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Replying to: wuddarush (Jun 08, 2007 8:16 pm)

Ah, your friend has taught you the GM Tank Kicking Two Step. A new fuel pump is in your future. This is a very common method of getting an intermittent fuel pump off it's butt and get you back home.
#38 of 100
more fuel pump woes by ozman316
Sep 23, 2007 (6:39 am)
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i have a 2000 jimmy , replaced fuel pump, filter, i am not getting fuel to the engine im guessin. no pressure at port and will start with starting fluid sprayed at filter location.so im guessin my spark is good. i do know i get fuel from the tank and to the filer becouse i have tested that.any ideas or suggestions for me id like to fix it if i could. and i do have to think about the costs here too so any id like to do all i can first
#39 of 100
Fuel Pump problem by delluchi
Oct 02, 2007 (8:38 am)
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A night before i set on a journey from Switzerland to Germany my car show yellow warning light which warn about fuel, power etc the symbol look like a videocamera diagram.
 
After about 3 hour drive the car stop to accellerate. I listern to the fuel pum sound it sound fine but road patrol said the fuel dont run to injector. What can i do before i buy a new pumb whch cost about $1150 equivalent in Swiss Franc (Sfr.1350-)
 
Befoe then i notice my car jeck for fuellike when the fuel suppply is cutting mostly when i break in a traffic light and some time it run so low that it switch off.
#40 of 100
Re: Fuel Pump problem? 2000 4.3 V6 blazer [ixxixxi] by riverrat15666
Oct 09, 2007 (5:40 pm)
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Replying to: ixxixxi (Sep 05, 2007 2:28 pm)

You said the pump was replaced...I think you have a 4 door Blazer pump installed in your 2 door Blazer. Ain't the same... but it will fit and look the same..The 2 door has a module (the white thing on top where the hoses connect) with a sticker marked SGK which is correct for a 2 door(19 gallon tank) A 4 door has a module marked TCH (18 gallon tank). A 2 door tank is mounted between the back frame rails...A 4 door tank is mounted on the drivers side to make room for the spare tire.
  If someone sold you a pump that is supposed to fit both...you got ripped off.

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