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Chevrolet Blazer Trouble Codes

65 messages,  Last post on Oct 28, 2009 at 5:12 PM

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#54 of 65 emissions code by b007halen Sep 18, 2009 (12:09 pm)
i have a 2000 chevy s10 blazer ls with about 190000 miles. and my check engine light is on and it is an emissions code. what should i do? and also my interior thermometer reads "OC" how can i fix that? Replies to this message: jlflemmons (Sep 18, 2009 4:03 pm) b007halen (Sep 20, 2009 8:16 pm) jlflemmons (Sep 21, 2009 10:06 am)
#55 of 65 EGR valve by duntov Sep 18, 2009 (3:26 pm)
I would first check or replace the EGR valve on the engine. They can get stuck with carbon deposit in a high milage engine when the vehicle is held at a continuous highway speed above 60 MPH for about three or four miles. That especially occurs after the vehicle has been in slow stop and go traffic for a few months. When the SES light comes on, stop the car, turn off the igintion for ten seconds and the SES light will go out. That is what I have to do on my 1991 S10 Blazer. I fixed the problem by driving at 80 MPH for about ten miles about once a month. Tell the police that you are testing your EGR valve, .I am sure they will understand.
#56 of 65 Re: emissions code [b007halen] by jlflemmons Sep 18, 2009 (4:03 pm)
Replying to: b007halen (Sep 18, 2009 12:09 pm) Do you have the code that has been set?   OC on the temp indicates either a failed temp sensor (behind the grill. You can see it clipped to the radiator support) or a damaged wire/connector. The "OC" means "open circuit". Replies to this message: b007halen (Sep 20, 2009 8:16 pm) jlflemmons (Sep 21, 2009 10:06 am)
#57 of 65 Re: 2001 Blazer PO 410B code [die] by jlflemmons Sep 18, 2009 (4:24 pm)
Replying to: die (Jul 17, 2009 8:05 am) There is a temp sensor located in the drivers side head, just above and between the #3 and #5 sparkplugs. That would be the middle (#3) and back (#5). What does the gauge read when the engine is fully warmed up?
#58 of 65 Re: emissions code [jlflemmons] by b007halen Sep 20, 2009 (8:16 pm)
Replying to: jlflemmons (Sep 18, 2009 4:03 pm) i believe that the code is P404. but i could be wrong. someone told me it was my purge valve solenoid Replies to this message: jlflemmons (Sep 21, 2009 10:06 am)
#59 of 65 Re: emissions code [b007halen] by jlflemmons Sep 21, 2009 (10:06 am)
Replying to: b007halen (Sep 20, 2009 8:16 pm) That code comes back to an EGR issue. Here is some more information:   GM P0404
#60 of 65 error code by b007halen Sep 25, 2009 (12:03 am)
i have a 2000 chevy blazer with about 197000 miles. my check engine will not go off and it is reading p440 Replies to this message: jlflemmons (Sep 25, 2009 7:06 am)
#61 of 65 Re: error code [b007halen] by jlflemmons Sep 25, 2009 (7:06 am)
Replying to: b007halen (Sep 25, 2009 12:03 am) Check the gas cap, and also the hoses and canister behind the drivers side rear wheel. This is an evaporative emissions code, so something is wrong in the capture systems. Look for cracked or broken hoses, most are bigger than a vacuum line and smaller than a heater hose.
#62 of 65 P0440 by b007halen Oct 27, 2009 (2:26 pm)
i have a 2000 chevy blazer and my check engine light has been on for about a month now. i bought a lock gas cap, and replaced a cracked and disconnected vacuum line. what else would it be. and how could i fix it? Replies to this message: jlflemmons (Oct 27, 2009 8:09 pm) valleygirlkim (Oct 28, 2009 5:08 pm)
#63 of 65 Re: P0440 [b007halen] by jlflemmons Oct 27, 2009 (8:09 pm)
Replying to: b007halen (Oct 27, 2009 2:26 pm) Check here: http://www.obd-codes.com/p0440 Replies to this message: valleygirlkim (Oct 28, 2009 5:08 pm)

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