2003 Chevrolet Avalanche - Answered Questions & Fixed issues

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2003 Avalanche. How can I order the right fuel filler neck to fit my vehicle?

Go to any parts store or dealer and they should be able to help you.
6/11/2022 3:25:07 AM • 2003 Chevrolet... • Answered on Jun 11, 2022 • 67 views
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Have 2003 chevy avalanche tail lights out but

I have the exact same issue on the passenger side. Did you find a solution to the problem?
4/23/2022 4:31:54 AM • 2003 Chevrolet... • Answered on Apr 23, 2022 • 909 views
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2003 Chevy Avalanche 1500 Won't Start

It sounds like you aren't using it enough and the battery is losing power. Invest in a battery charger, they are about $20. Mine has 6 amp for a full charge or 2 amps for a trickle charge. charge the battery overnight when you know you are going out. Put it on charge at least every couple of weeks. Lead Acid batteries need to be kept fully charged. Something may be draining the battery faster than normal. That is called 'parasitic draw'. Hard to diagnose, but can be done. If the battery does go completely flat, you need to reset the security system. Finally, many car electrical systems need a full 13 volts to start due to the electronics. Good luck Kristin.
3/28/2022 8:18:03 PM • 2003 Chevrolet... • Answered on Mar 28, 2022 • 89 views
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2003 Chevy avalanche reduce engine power what does

have it scanned usually this is a problem with the throttle actuator
1/18/2022 8:40:02 PM • 2003 Chevrolet... • Answered on Jan 18, 2022 • 1,316 views
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Driver side electric seat is stuck in the far forward position and won't move. How do I move it manually or fix the motor.

Auto Repair: How to Replace a Power Seat Motor - YouTube

? 1:44 https://www.youtube.com/watch?v=EDh-0rs5Fjo Oct 26, 2010 - Uploaded by automdvideos Auto Repair: How to Replace a Power Seat Motor ... 2007 - 2008 Ford Expedition/Lincoln Navigator Driver Bottom Install Video ...2003-2006 Chevy/GMC Seat Cover Install 1 of 3 - eBay Ready ...2000 Ford Explorer Front Seat Track Stuck Motor Repair - Duration: 4:39. by cubmancan 4,959 views. 4:39. Drivers seat is dead! No power seat or heat. - TheDieselGarage.comwww.thedieselgarage.com/.../96465-drivers-seat-dead-no-power-seat-hea...Mar 22, 2010 - 2003-2005 Chevrolet Avalanche, Silverado, Suburban, Tahoe 2003-2005.... Power seat on driver side didn't work.....passenger did! Neither ...DANG electric seat ' Chevy Truck Forum ' GM Truck Clubwww.gmtruckclub.com/forum/threads/dang-electric-seat.2990/Apr 27, 2006 - 10 posts - ‎7 authors'03 Tahoe My driver seat just stopped, of corse not where I need it, the ... I have a 2003Tahoe and both heated seats are not working. ... with my seat heater on the drivers seat in my 03 Avalanche, it turns ... The driver's side on my Silverado gets way warmer than the passenger side. ... Frozen New Member.Power Seat Problems?? - Tahoe Forum - Che
1/9/2022 11:29:01 AM • 2003 Chevrolet... • Answered on Jan 09, 2022 • 9,801 views
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I have a 2003 chevy avalanche, and i need to

jack up the rear of the car remove wheels and tires, remove the two caliper bolts, remove old brake pads, using a c clamp push each piston the the caliper bake in install new pads, reinstall caliper install wheels and tires lower the jack and your done
caliper bolts are torque head bolts be sure to have the proper size before trying to change the brakes
6/11/2019 7:22:27 AM • 2003 Chevrolet... • Answered on Jun 11, 2019 • 443 views
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2003 chevy avalanche says drivers door ajar but it's not and interior light stays on and power to ther door goes on and off

It's either two two things. The latch assembly needs to be replaced or it's your BCM .
5/1/2019 1:18:30 AM • 2003 Chevrolet... • Answered on May 01, 2019 • 1,556 views
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My 2003 chev Avalanche 2500 keeps going into limp mode Code reads throttle body even after putting new one on ????

What is the DTC - diagnostic trouble code ? No code tells you a part is bad . Diagnostic testing procedures are given for each code the vehicle can set . Your vehicle can set numerous code's for the electronic throttle control an not one of them tell's you out right to replace the throttle body or the APP sensors . Looking at factory service repair info for the code an doing diagnostic testing befor replacing any parts should be done. The throttle actuator control (TAC) system delivers improved throttle response and greater reliability and eliminates the need for mechanical cable. The TAC system performs the following functions: • Accelerator pedal position sensing • Throttle positioning to meet driver and engine demands • Throttle position sensing • Internal diagnostics • Cruise control functions • Manage TAC electrical power consumption The TAC system components include the following: • The accelerator pedal position (APP) sensors • The throttle body assembly • The throttle actuator control module • The powertrain control module (PCM) Accelerator Pedal Position (APP) Sensor The accelerator pedal assembly contains 2 individual APP sensors within the assembly. The accelerator pedal position (APP) sensors 1 and 2 potentiometer type sensors each with 3 circuits: • A 5-volt reference circuit • A low reference circuit • A signal circuit The APP sensors are used to determine the pedal angle. The control module provides each APP sensor a 5-volt reference circuit and a low reference circuit. The APP sensors then provide the control module with signal voltage proportional to pedal movement. APP sensor 1 signal voltage is low at the rest position and increases as the accelerator pedal is applied. APP sensor 2 signal voltage is high at the rest position and decreases as the accelerator is applied. Throttle Body Assembly The throttle body assembly consists of the throttle body, the throttle position (TP) sensors, and the throttle actuator motor. The throttle body functions similar to a similar to a conventional throttle body with the following exceptions: • An electric motor opens and closes the throttle valve. • The throttle blade is spring loaded in both directions and the default position is slightly open. • There are 2 individual TP sensors within the throttle body assembly. The TP sensors 1 and 2 are potentiometer type sensors each with 3 circuits: • A 5-volt reference circuit • A low reference circuit • A signal circuit The TP sensors are used to determine the throttle plate angle. The control module provides each TP sensor a 5-volt reference circuit and a low reference circuit. The TP sensors then provide the control module with signal voltage proportional to throttle plate movement. Both TP sensor signal voltages are low at closed throttle and increase as the throttle opens. Your best bet , take it to a qualified repair shop.
9/21/2018 3:38:14 PM • 2003 Chevrolet... • Answered on Sep 21, 2018 • 881 views
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2003 AVALANCHE LEAK IN LINE FROM FUEL FILTER BACK TO CONNECTOR ABOVE FRAME. HOW TO I DISCONNECT THIS LINE WITH ONE HAND?

you have to buy the special tool to release the line any autopart store will have it for under 20.oo bucks
5/12/2018 6:48:39 AM • 2003 Chevrolet... • Answered on May 12, 2018 • 698 views
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03 avalanche power keeps on draining from some where.

When you unplugged the alt,did you disconnect the larger alt output power wire?That.s usually where a power draw will be in an alt as this wire is connected to the diodes.
3/14/2018 12:29:18 AM • 2003 Chevrolet... • Answered on Mar 14, 2018 • 413 views
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03 avalanche power keeps on drawing from somewhere and in the morning its dead. I will jump it and it will run fine!

You have a parasitic draw on the battery , Testing to find the draw isn't too hard ,all you need is a DMM - digital multi-meter . Test for voltage drop over the fuse's . I know GM vehicles had instrument cluster problems that would cause this problem , but test first . Watch these videos . The BEST Way TO Perform Parasitic Draw Test Chevrolet Truck Battery Dies Overnight Part
3/1/2018 11:06:49 AM • 2003 Chevrolet... • Answered on Mar 01, 2018 • 2,000 views
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FOB won't work on Chevy Avalanche

Doesn't use a fuse , ues a circuit breaker . These very rarely go bad .The right rear door works ? Uses same circuit breaker as front passenger door. The power windows an locks on your vehicle are controlled by electronic control modules . FPDM - front passenger door module , I would look for a broken orange wire inside the flex boot from the body to the front right passenger door . This is power supply to the passenger door module . Do you know what wiring diagrams are ? Free here http://www.bbbind.com/free-tsb
1/31/2018 12:37:00 PM • 2003 Chevrolet... • Answered on Jan 31, 2018 • 802 views
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2003 Avalanche--front brakes make a

Not to question your ability, if you listen from the drivers seat while driving, just do yourself a favor, check the rear brakes, funny how sound travels and tricks the mind
12/3/2017 3:25:40 AM • 2003 Chevrolet... • Answered on Dec 03, 2017 • 225 views
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My 2003 avalanche died suddenly and now will not start. The engine turns over fine, I replaced the fuel pump fuse, but it still won't start. I'm guessing the fuel pump itself went bad, but jus

what about a broken timing belt cam shaft /crank shaft position sensor or failed immobilizer
11/14/2017 7:32:10 AM • 2003 Chevrolet... • Answered on Nov 14, 2017 • 639 views
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My 2003 Chevy Avalanche is having trouble shifting

Just a question. Does the truck do this after the truck is warmed up. If not this is a temp. issue and can be a few items. Generally this is an electric switch issue. Remove the fuse from the system when you shut it off for the night and see if it still jumps to 4x4 mode.
10/31/2017 4:16:59 AM • 2003 Chevrolet... • Answered on Oct 31, 2017 • 179 views
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I can't find relay switch on a 2000 and three Avalanche Chevy truck fuel pump relay switch

https://s1.postimg.org/8oivhsraj3/underhood_fuse_box.jpg Click on the link. I looked at your owners manual. F pmp in the circle should be fuel pump relay, under hood fuse block. I you don't have an owners manual, my.gm.com Has your owners manual, you can look at it for free.
10/29/2017 8:48:37 PM • 2003 Chevrolet... • Answered on Oct 29, 2017 • 184 views
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Why scan tool doesn,t connect to truck.

ecm has been replaced????? was it programmed ?
9/27/2017 9:47:53 AM • 2003 Chevrolet... • Answered on Sep 27, 2017 • 173 views
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Truck Radio/CD Player, no sound coming out of speakers

GM had insturment cluster problems 2003 to 2006 . Inside is a part called a stepper motor , this stepper motor controls the gauge position . How to repair GM Instrument Cluster Speedometer Gauge Stepper Beside's the stepper motor issue there can also be a problem with something called silver migration , this has to do with the solder used in the insturment cluster . This can cause a number of electrical problems most people would not even think possible . Silver Migration Watch this two videos . Chevrolet Truck Battery Dies Overnight Part Chevrolet Truck Battery Dies Overnight Part II
9/15/2017 12:11:30 PM • 2003 Chevrolet... • Answered on Sep 15, 2017 • 937 views
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2003 chevy avalanche 1500, speedometer and odometer not working at all

Being and electronic speedometer, it will surge a touch when engine first started or switch first turned on, that's normal, but the only reason it is not working while driving is most likely a faulty speed sensor. Code should tell you this with a reader.
8/25/2017 5:35:46 PM • 2003 Chevrolet... • Answered on Aug 25, 2017 • 597 views
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