Question about 1997 Chevrolet Blazer

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I may be changing a fuel pump on a1997 blazer for someone i don't want to change it if thats not the problem what tests can i do to be sure its the pump .they told the pump is going bad but they are not mechanics

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If you can hear the pump running it likely is good If there is power to it and good ground bit ot dosen't run then it may have failed. Check filter, pump relay and fuse and check pressure (with gauge) at fuel rail. If you can briefly start it by spraying carb cleaner into the throttle body while cranking,then yes, check the remainder of the fuel system. If not, check to make sure there is spark getting to the plugs.

Posted on Oct 07, 2009

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Check to see if there's a drop in fuel pressure from the fuel rail.Another quick test is have someone turn the igition on to run( not start)Listen for the fuel pump which means you will have to get as close as possible to the gas tank to hear this

Posted on Oct 07, 2009

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1 Answer

I have a 1999 Chevy Blazer I changed the fuel pump I have to crank on it a long I have to crank on it a long time before it will start. The I don't goes up and down it bogs down an it bogs down and dies....


It could be the fuel pressure regulator, but that can be determined by testing the actual fuel pressure in the fuel feeder rail. But first, have you changed the fuel filter? The fuel filter usually is clogged with debris whenever a fuel pump fails, so be sure to change that first.

Oct 28, 2014 | 1999 Chevrolet Blazer

1 Answer

I'M WORKING ON A1997 CHEVY BLAZER THE FUEL PUMP WENT OUT AND WAS REPLACED WILL START SOME TIMES REPLACED RELAY DIDN'T FIX IT WHEN IT WILL START THE WORNING LIGHTS ON THE DASH WILL COME ON WHEN


Check the engine bulkhead main wiring connector in front of the driver on the firewall, see if it is loose or corroded, remove it and reinstall it. This can also be due to the ignition starter switch being defective on the rear of the ignition key cylinder, very common on this model..

Oct 02, 2012 | 1997 Chevrolet Blazer

1 Answer

2000 blazer wont start


If you don'nt have spark check for power from coil.If theirs no spark coming out of the coil then replace coil.Just pull the coil wire off the distributor side and ground it against metal and have someone else crank it over while you watch for spark.Be careful don't hold wire by hand you will get shocked.

Jan 03, 2012 | 2000 Chevrolet Blazer

1 Answer

Where is gas tank on a1997 lincoln town car and do you have to drop the tank to change fuel pump


It is behind the rear axle. And no. You don't have to drop the tank to change the pump. Remove the fuel pump from the side of the tank.

Jul 07, 2010 | 1997 Lincoln Town Car

1 Answer

CHANGE FUEL PUMP ON 1999 BLAZER


Check your fuel pressure.
Hopefully this tank is not full, as you need to pull the tank to change fuel pump, this is mounted onto the tank through the top. There are several plastic fitting and hose connecitons on the tank as well as the fuel level connector. There may also be a Vapor pressure sensor on the tank. After unbolting the tank lower the tank just far enough to remove the wireing and hoses. Make sure top of tank is clean. If you have to move tank out from under Blazer cover hose aconnectionss and wash off top of tank and flange area. Unlock flange and R and R pump assembly. Reconnect hoses and wires, reinstall tank. Connect hose to fuel test port on engine, purge air from fuel system. Check the fuel pressure. InMrFixIt

Dec 29, 2009 | 1999 Chevrolet Blazer

1 Answer

Blazer will not have fuel present when quits over 100 degees.


Vapor lock it sounds like.
you could try an electric fuel pump, but you should have fuel pressure regulator and pump and relay tested.

Aug 12, 2009 | 1999 Chevrolet Blazer

1 Answer

1994 S10 Blazer Tahoe starting problems


Well, obviously someone didn't tell you the truth because spraying into intake doesn't make the vehicle turn over any better. You have ignition or fuel delivery problem. Start by taking fuel line off at intake and crank engine a couple times catching any gas in a cup or something. If none, then trace fuel line back and under vehicle til you find filter. Should be under driverside midway back on inside of frame. Change this and try test again. If no gas, see if fuel pump is on motor(mechanical pump). Change this and test again. If not on motor then it's in gas tank(electric pump). Most cases the tank has to be lowered to take out pump, careful not to drop, dent or make sparks. Some came with access through the floor so check that first. Normally you can hear an electric pump come on when you turn the key. Good Luck

Jun 30, 2009 | 1994 Chevrolet S-10 Blazer

1 Answer

2000 blazer shuts down while driving as if choked for gas


change the fuel filter, check the fuse for the sending unit and the fuel pump relay and if all these test good it maybe the pump getting weak

Mar 03, 2009 | 2000 Chevrolet Blazer

1 Answer

Can hear a click at fuel pump but no humming..is it the fuel pump??


Was it a factory GM pump? Check for power at the Grey wire going into the pump it should have 12V for 2 seconds after you turn on the key so you cant do it by yourself get someone else to either turn on the key or watch the test light, If you have no fuel pressure but have 12V for 2-3 seconds then you have a bad pump and be sure to double check the Ground make sure its clean and secure also change the fuel filter at the same time. Forget the oil changes they do nothing for the car oh yea change it one every 4 or 5 years is way fiine but change the fuel filter EVERY EVERY 15,000 miles no matter what. If this information helps please give me a fixya rating.
Oh yea make sure you buy a Factory GM pump you'll be gald you did,

Sep 02, 2008 | 1990 Chevrolet S-10 Blazer

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