Question about 1997 GMC Sierra

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I have an 1997 gmc sierra 3500 hd that has air in fuel lines how do I fix this

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If it is something that is persistant, you should try looking for cracks in the lines, but if you replaced them just crank the engine, the air should work itself out in time.


Posted on Jul 13, 2009


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My oil pressure gauge is high and blowing fuel line fuse in '91 GMC Sierra

check wires from sender make sure they are not broken pinched grounded out i had this same issue with my 89 3500 454 and the wires were rubbing the balancer finally wearing through grounding them this told the computer there was an issue with oil pressure and blew the fuse to prevent engine damage i traced them out and fixed never had an issue again

Apr 25, 2015 | 1991 GMC Sierra

2 Answers

I have a 1999 gmc 3500 crew dually with a 454 engine in it. This week it started running rough and idling funnny. Could this be the fuel filter or something else?

The fuel filter may need to be replaced, but wont fix the problem you have. Its just a maintenance item that should be done every 15k miles anyhow. Check it over, check the large hose between the air filter and the engine make sure its secure. see if all hoses are ok, if you see/hear a vacuum leak. If all looks ok, time to have it checked by a shop.

Sep 01, 2011 | 1999 GMC Sierra 3500

1 Answer

Where is the fuel filter located and how do i change it on a 1997 gmc siera 3500 diesel

Not real familiar with this model of truck...but I'd find your injector lines that take you to the fuel pump. (fuel pump should be driven by a belt)
Then from the fuel pump, I'd follow the fuel line on back to the fuel filter.
Should be a rather large cannister mounted near the firewall.

Hope this is helpful...

Jul 30, 2011 | 1997 GMC Sierra

1 Answer

My 1997 GMC Sierra 5.0 Litter wont start and i changed the fuel pump regulator, what might be the problem?

engines need 3 things to start (petrol engine)
fuel, air and a spark,
as you have been working on your fuel system it is best to suspect this system first,
on engine turn over see if you can smell fuel at the exhaust.
if you smell fuel the fuel regulation mybe too high and the engine is flooding.
if you do not smell fuel, remove fuel line from engine and ensure fuel is getting to the engine,
(be careful not to let fuel spill this generates a fire risk)..
once fuel is getting to the engine, check your ignition system to ensure you have a good spark to ignite the fuel.
finally check your air filter is not blocked and that you have air getting to the engine.

I hope this was helpful.

Jan 11, 2011 | 1997 GMC Sierra

1 Answer

When i change my tire, i notice that my tire moves up and down, on my 1994 GMC 3500 HD

It sounds like the ball joints the uppers are rivited on and need the be drilled out the new ones come with nuts and bolts its a common problem on chevys there olny 20 dollars a peice

Dec 05, 2010 | 1997 GMC Sierra

1 Answer

1997 gmc 3500 hd headlight switch , new dtr relay, all grounds good, daylight running lights work ,marker lamps work...headlights will not come one but marker lights do..highbeams do not work either

I am having the same problem please let me know if you came up with a solution! I have replaced headlight switch and relay, and combination switch. My problem is it will start working on its own, then at night they wont come on

Dec 01, 2010 | 1997 GMC Sierra

2 Answers

Duramax surging when idling in gear at a stoplight,2005 gmc 3500

sounds like air in the lines.make sure fuel filter and wif sensor are tight.

Mar 07, 2010 | 2005 GMC Sierra

1 Answer

I have a 1994 gmc 3500 6.5 ltr diesel and the fuel pump is not getting any power going to it.. can someone please help me figure out how to track the problem down and fix it.

the fuel pump is in line, replace it, it's cheap.. If it's still not getting power, then you gotta start tracing the wiring and looking for the electrical short.. Check the fuses too.. When it doubt, think cheapest first..

Mar 12, 2009 | 1994 GMC Sierra

2 Answers

Truck just shuts off

I own the same 3500 GMC 6.5 diesel truck with the same problem. We replaced the brain under the upper turbo hood and it fixed it pronto. No more shutoffs

Dec 07, 2008 | 2000 GMC Sierra 3500

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