Top 20 2003 Chevrolet Avalanche - Page 8 Questions & Answers

When was the last time you had an alignment done? Since it happens at those speeds primarily, it sounds like an alignment problem.

I have the same problem few days ago and found my solution on Fixya Expert Sources website. Here you will get all the top sources of your problem. All the sources of this site provided by top Fixya Gurus. Have a good look at the sources of the page. Go through the sources to find your solution. Hope it will help.View Count:8

• Hi, I can help.
• Your PCV valve is located on the passenger side valve cover.
• Check the hose to that runs from the PCV valve to the intake if you are looking for a leak. Them hoses rot a lot.

• If you have any comments please feel free to leave them here.

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Regards, Tony

A P0430 is for Low Catalyst Efficieny on Bank2 (Passenger Side) You need a new Catalytic Converter. Engine cleaner isnt going to fix this, they robbed you. Only a new Cat will fix this but you need to do both at the same time! Hope this helped.

Sounds like a blower motor resistor. Not an expensive part, fairly easy for a mechanic to change. Located usually behind the glove box door.

Give some more details of the problem.

is/was the check engine light on??as far as no fuel try spraying some carberator cleaner in
the throtle body to see if it helps starting.

here a link to download the owners manual.
www.chevyavalanchefanclub.com/.../owners_manual_2003
www.chevyavalanchefanclub.com
i hope that will help you

contact Chevy , the chevy speedos have had those problems since 2002 and into 2007 when they finally made changes, there is a kit you can get that replaces all the step motors , But its a pain so I hear ,, they have a pending recall, so contact your chevy dealer and jump on that band wagon, if you want to check out one of the forums on that subject heres the link http://www.topix.com/forum/autos/chevrolet-tahoe/T2BGKBGI55EKNU77C/p3 wish I had better info for you , and that Chevy had a quick fix

Check the fuses see if there is a fuse for the starter if there is not one check the connectors of the starter make sure you are getting power at the wires of the starter if you are,it could be the starter itself!.you will have to replace it.

check vaccum lines for a leak

CODE PO650 MALFUNCTION INDICATOR LAMP CIRCUIT MALFUNCTION CONDITIONS. POSSIBLE CAUSES MIL CONTROL CIRCUIT IS OPEN , SHORTED TO GROUND TO SYSTEM POWER,MIL CONTROL POWER CIRCUIT OPEN IN THE INSTRUMENT CLUSTER, MIL THE LAMP IS DAMAGED OR HAS FAILED,INSTRUMENT CLUSTER OR THE PCM HAS FAILED. CODE PO332 KNOCK SENSOR CIRCUIT LOW INPUT BANK 2 CONDITIONS, POSSIBLE CAUSE KNOCK SENSOR FAILED, CODE P1875 4WD LOW SWITCH CIRCUIT MALFUNCTION CONDITIONS FOR TRANSMISSIONS 4L60E 4L80E, POSSIBLE CAUSES 4WD SWITCH LOW SIGNAL CIRCUIT IS OPEN OR SHORTED TO GROUND, 4WD LOW SWITCH IS DAMAGED OR IT HAS FAILED,PCM HAS FAILED.

The oil pan is the bottom of the engine, it has a plug in it to drain the oil. Not to be confused with the transmission pan, sometimes they look a like. The drain plug is usually up and out of the way of being hit with a curb and knocked off. Hope this helps.

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Thank you for briniging up the problem to our attention. To serve you better, could you please provide me more information whenever you try to attempt to start your car? Did you hear any clicking sound? Please check if you are getting power from the battery using a voltmeter.

You response will be greatly appreceiated.

Thank you for using Fixya! If you need further help, reach me via phone at https://www.6ya.com/expert/elixirjose_00375ea24bd8141b

No the key does not have achip, but it does have a transponder embeded in the plastic head. A new key might turn the ignition, but the SECURITY system will thw shut down the vehicle. This link has some info on the subject and ways to bypass the security

http://vatspasslockpasskeysecurityhelp.yolasite.com/

is the bulb good, is the socket good, I would swap the left and right bulbs. then go from there

Either a stretched belt or your belt is not tight enough which means that the tensioner is not doing its job anymore. Sometimes the springs inside the tensioner break and do not allow for it to give adequate tension to the belt.

i would check it all out with my automotive meter first as i also suspect the pedal sensor on the accelerator pedal inside the cab

unless you or the previous owner or driver of the car had hidden a key in the trunk, there should not be one there. You might have to find a locksmith to make you a new key ... or order one through your local Chevy dealership. Generally, auto makers won't hide a spare key in th car -- they give you a couple of keys on a ring and count on you to hide one if you think it is needed.

its behind the gas peddle. this is what i found in the Manuel