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What is the fuel pressure for my 2001 blazer 4.3

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6ya6ya
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Posted on Jan 02, 2017

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bromech
  • 322 Answers

SOURCE: Change the fuel pump on my 2001 blazer now that

Not less than 50 psi

Posted on Jan 21, 2011

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mikek92580
  • 378 Answers

SOURCE: where is fuel tank pressure

whats the code

Posted on Mar 02, 2011

  • 279 Answers

SOURCE: 2001 blazer rich

check the engine breather pipes. if one of these is split this will cause a headache inducing smell while driving

if this helps let me know

cheers
mike

Posted on Jul 03, 2012

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2 Answers

Where is the fuel pressure sensor on a 2001 chevy blazer 4wd 4.3 engine


There isn't a sensor on these. There is a regulator, if that what your looking for? it is inside the plenum attached to the injector control. Under the big plug near the rear of the engine.

Jun 11, 2016 | 2001 Chevrolet Blazer

1 Answer

2001 blazer wont start ran fine before turning off has fuel pressure has fire check timming ok relaced coil ,ing moduel crank sensor dist cap could it be the anti theft ?


You say it has fuel pressure, if it has sequential fuel injection it needs about 70psi to start the engine.
If it cranks and has spark to the plugs, the anti-theft system is not involved.
You did not mention the rotor, I assume you have spark to the plugs not just out of the coil.
If you have not yet checked cranking fuel pressure, I would start there. The pump could be weak or the filter stopped up.

Jul 22, 2012 | 2001 Chevrolet Blazer

1 Answer

2001 chevy blazer fuel pump


you will need a fuel pressure tester to screw onto the fuel rail of engine.. if pressure reads 60psi pump is good...

Jul 08, 2012 | 2001 Chevrolet Blazer

2 Answers

2001 Chevrolet Blazer LS 2-dr, 4 wheel drive, 2 cranks to start


Try replacing the fuel filter first, but it sounds like your loosing your fuel pressure prim when the fuel pump is not working. The fuel pressure should be 62-65 PSI with the engine not running the the ignition key turned on and should drop about 5 psi when the engine is running. If you turn the engine off and check the fuel pressure, it stat steady for morn then 15min. If it drops fast, then you have a leak at your fuel pressure regulator (common) or your return fuel check valve which is located at your fuel sending unit.
Start with the simple and replace the fuel filter, it could just be to dirty to pressurize the fuel system fast enough giving you the hard start.
Thank you for using Fixya and good luck

Apr 04, 2010 | 2001 Chevrolet Blazer

1 Answer

Will not start when cold or after setting over night. once started starts fine. 2000 s 10 blazer 4,3.


Any engine codes? Could be a bad coolant temp sensor. Also check the fuel pressure with a pressure gauge for proper fuel pressure.

Mar 12, 2010 | 2001 Chevrolet Blazer

2 Answers

Wont start unless you pour gas down throutle body on 2001 chevy blazer


You'll need to see if your fuel pump is providing fuel pressure. First test would be to take off fuel cap, listen through filler tube as someone turns ignition on for a few seconds, then off for a few seconds. Repeat a few times you should hear the fuel pump start then stop as it builds pressure.

No noise, then test voltage coming to pump if yes, 12 volts, replace fuel pump. Test ground also before replacing pump.

I would expect it to be this as the computer wouldn't allow the vehicle to run with fuel being poured into the engine otherwise.

If it's pumping, you will need to do pressure testing to determine if it pumps enough, or just replace it as either just the pump, or the complete pump assembly that drops into the tank rather easily.

Pumps are available at dealers OEM, discount auto parts stores, and I've had good luck with pumps that I've bought on eBay.



good luck

Mar 11, 2010 | 2001 Chevrolet Blazer

5 Answers

2001 blazer will crank fine but wont start unless


what is the fuel pump pressure for a 2001 chevrolet blazer 4.3

Oct 21, 2009 | Chevrolet Blazer Cars & Trucks

2 Answers

I did a fuel pressure test on my 2001 blazer. This is a 4.3 v6 csefi system. when I turn the ignition on ( engine not running) the pressure comes up for about 2 secounds 64 psig then once the pump stops...


I just went through a major costing repair. My fuel pump blew and we discovered the pressure test # are wrong. Mine, like yours was showing it in the range but it in fact wasn't. Also the sending unit is on recall.

Oct 20, 2009 | 2001 Chevrolet Blazer

1 Answer

Chevy Blazer won't start; fuel pump needs replacing


Before spending several hundres on a fuel pump, I recommend doing a fuel pressure test. You can get a test gauge pretty cheap at a parts store. If the pump is junk, you raise the truck, lower the fuel tank, unplug the electronics from the pump at the top of the tank, then with a hammer and flat head scrwedrive, gently tap the lock ring in a counter clockwise direction until it pops off. Pull the pump assembly out and install the new one. Reverse directions to install.

Jun 02, 2009 | 2001 Chevrolet Blazer

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