Question about 2001 Chevrolet Silverado 2500HD

3 Answers

I have a 2001 Chevy Silverado 2500HD 8.1L the truck loses power and will shut off for no reason, and does not matter what speed, i could be sitting at a light or doin 70 mph down the freeway and it still does the same thing. I have been told that the crankshaft position sensor could have something to do with it. Have had it in the shop several times, and they cannot find anything wrong, the only thing that was coming up as a problem was the O2 sensor which i have replaced.

Posted by on

  • 1 more comment 
  • ksridge101 May 13, 2010

    Yeah i have had the fuel pump checked, they said that it was reading fine, and that they couldnt simulate the problem that i was havinig well it has been about two months and it is still doing the exact same thing i also saw that Chevrolet had a recall in 06 for the crankshaft position sensor, called on that and it has been replaced, but is giving the same problem.

  • ksridge101 May 17, 2010

    New development today the truck will not start at all. It turns over, but will not start, replaced the sparkplugs and battery, but to no evail. any suggestions.

  • ksridge101 May 20, 2010

    It has the 8 cyl 8.1L, took it to the shop, and they found that the fuel pump is bad. So I am going to have that replaced, but have another question for you. Do you know when they sale the fuel pump if california emissions are required?

×

3 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,509 Answers

The O/2 senser will not make it qit but the fuel pump and the ingition module will. does it start right back up? Fuel pumps heat up and quit sometimes opened the relay and it cools and or is cycled as you try to restart and it reclosesand you drive on. an amp test on the pump draw or even a scope test of the pump may isolate it as the bad boy. Pumps build up pressure and heat if the fuel filter is partly clogged. Change the filter as preventale maintanance and try to blow though the old one if it blows though hard it may be too late for the pump and you may have to change it too as the stuff that went thohg the pump that stopped up the filter. You only can heat the pump so much before its bad if you find it is change the relay also and check the ground wire where it connectes to the frame. The hanger unit that the pump is in fails too and it has to be changed on most models as you can't buy the pump any other way because it fails as often as the pump or is damaged as the pump fails. The ingtion ciol can fail, but not likly to start right back up you gota wait. The ECM cando it too but is not a common problem. Their may be engine control codes in the computer to help you determine the problem

Posted on May 13, 2010

  • 2 more comments 
  • John P Schwantes Jr May 13, 2010

    the fuel pump and it's control is most likly. Does the car start right back up or do you have to wait awhile? If it starts right away the fuel pump relay is located in the underhood relay center The horn relay and the fog light relay are the same part and can be swapped around. if swappping relays changes how long it runns before it stops the fuel pump and filter are bad. Even a bad fuel pump can put out the right presure when tested only a o scope can see a drop out in the motor and on and amp gauge can test how much power the pump draws. if it draws more than 5 amps 10 on start up it's bad. sure it works but when its drawing too much power it's either pushing fuel past a clogged fuel filter or a stuck fuel pressure regulator ( pressure too high) The hot pump swells up and quits turning as soon as it stops the relay kicks out till you restart the truck. then the heat up process starts up al over again. It sounds like it runs good when it's running and it might not happen some days? The ingtion module is sitting next to the dist on the 4.3 and 5.7 8.0 this part can heat and fail some auto prts stores can test this part and sometimes find a heat up failure if it does the coil is bad so goes the wisper down the lane effect

  • John P Schwantes Jr May 18, 2010

    need to check the basics. Spark fuel and compression, In that order. Spark ( remove a plug wire from a plug lay it on medal and crank the engine watching for spark, You don'y even have to see it you'll be able to hear it too) Fuel ( add some to the air intake if it flashes off, ( starts and dies ) ) The fuel pump quit or the fuel system is stopped up. Rember it has to have spark for this to be a good test. Compression ( it normally doesn't come and go and overheating is the first cause and timing chain failure is next) You've never mentioned which engine is in this truck and their are 5 possible and others in special apps. so further study I need to know what engine? Is It a desiel? 6 cylinder 8 cylinder ( which one) 10 cylinder?

  • John P Schwantes Jr May 20, 2010

    $259 Buys the fuel pump and Hanger assembly with the wire harness to make the (nearly universal) GM pump system fit. The shops that you took it to before it quit altogether did'nt scope the fuel pump power wire and it they did they would have condemened the old pump even though it was working

  • John P Schwantes Jr May 21, 2010

    Fuel pumps come and go. they tend to work good as new as their working. beat on the tank shakes them when they quit and the pump comes back on. But it's bad. Crank sensers vary how they fail from random misfriesP0300 to dead

×

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Don't know if u still need the help but I have a 2001 chevy silverado 2500 HD 8.1 and it was cutting off on me and finally just wouldn't crank at all . Never could get a straight answer from chevy techs or mechanics but it is your crank shaft sensor . Chevy currently has a recall on this problem but only for the 2500 not the HD so it only cost me about $170 to replace and if this is your problem please call chevy and report it b/c they are not recalling the problem in the 2500 HD because they have not had enough people complain or report it ..I am still waiting for them to refund me my money for this defect. ut yes the crank shaft sensor sovled my problem hasn't had that issue at all since I replaced it. Hope this helps someone out there

Posted on Jun 27, 2012

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I have the same size engine it was doing the exact samething chage the crankshaft sensor you will be wasting money on all the rest i changed mine and it runs like new more horsepower better responce

Posted on May 21, 2010

1 Suggested Answer

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

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

OBDII Codes 2006 Chevy 2500HD w/ 6.6L Duramax "Truck started losing power when warm, when cold for the first 10 miles or so the trunk runs great."


You need a dealer, there is a real problem going on here, way over the head of any home do it yourselfer. The main reason is the special tools required to interface with the control modules that are throwing these codes

Jun 29, 2017 | 2006 Chevrolet Silverado 2500HD 2WD

1 Answer

Need code for radio anti-theft system.for a 2001 chevy silverado


You would need to go to a Chevy dealer to have to codes burned in to the vehicles computer. The reason why GM had done this was to deter theft of radios from their vehicles. The radio must have the VIN (vehicle identification number) burned into the chip to match the VIN on your vehicle so it will play

Jan 27, 2010 | 2001 Chevrolet Silverado 2500HD

1 Answer

Battery dies for no apparent reason if truck sits


Fantom power drain. Make sure nothing is plugged into the lighter Make sure no lights are on like under hood or visor mirrors Turn off radio and make sure no cd/tape is in
Ignition switch might be bad A good battery should last 2 weeks just sitting. A old battery will go dead overnight especially if cold

Jan 14, 2010 | 2001 Chevrolet Silverado 2500HD

1 Answer

2001 CHEVY SILVERADO 2500HD BATTERY LIGHT FLASHES INTERMITTENTLY. NO PROBLEM WITH BATTERY OR WITH ALTERNATOR, BOTH OF WHICH TEST OK. NO PROBLEM WITH STARTING OR RUNNING, EXCEPT FOR THE FLASHING BATTERY...


2001 chevy silverado 2500hd battery light flashes intermittently. no problem with battery or alterntor. both tested ok. no problems with starting or running. voltage gauge reads just above 14. no problems with anything except battery light flashes. what could be the problem?

Dec 04, 2009 | 2001 Chevrolet Silverado 2500HD

1 Answer

How to change front main oil seal on 2001 chevy 8.1


you will need a puller to remove the front crank pulley/ balancer. then its a matter of prying the seal out.

Oct 19, 2009 | 2001 Chevrolet Silverado 2500HD

1 Answer

2005 chevy 6.6L turbo deisel losing power and blowing black smoke


pump may need recalibrating or a kit through it
or you may have a cracked turbo

Jul 20, 2009 | 2001 Chevrolet Silverado 2500HD

3 Answers

My truck loses power


In most cases it is the fuel filter. I don't know when it was changed before, but it should be changed at least every 8-10 k miles. Make sure you change the air filter too.

Apr 14, 2009 | 2001 Chevrolet Silverado 2500HD

1 Answer

2001 chevy sylverado 2500hd power steering and power brakes quit


check power steering fluid. first. if all good . power steering is going. your hydro boost brake system depends on the power steering pump if it goes out your brake go out.

Jan 12, 2009 | 2001 Chevrolet Silverado 1500

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

1,071 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

75817 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8180 Answers

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

Answer questions

Manuals & User Guides

Loading...