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Chevrolet Blazer Trouble Codes

33 messages,  Last post on Jul 14, 2008 at 10:21 PM

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#9 of 33 2003 Chevy Blazer by sgnobod2000 Jun 23, 2007 (7:10 pm)
I just recently got my service engine soon light coming on. I thought originally it was bad gas because it was right after I got gas, within 15 minutes. After my store stop I added the same amount of gas from a different station. Light stays on. runs ok. Is there a manual way to get the codes on this vehicle or do I need a reader. I know my other vehicles you had to do a succession of key off etc. I would appreciate any help. Replies to this message: repairdog (Jun 24, 2007 4:32 am)
#10 of 33 Re: 2003 Chevy Blazer [sgnobod2000] by repairdog Jun 24, 2007 (4:32 am)
Replying to: sgnobod2000 (Jun 23, 2007 7:10 pm) No, need a code reader and Advance and AutoZone read for free as well as many other local stores (in hopes of selling you parts). Read it out and maybe just a simple loose cap so write the code down and have them erase it and see if it returns.
#11 of 33 95 blazer by pegleg89 Aug 18, 2007 (7:28 am)
I get code 1406 I repaced the fuel injection spider it ran good for the few miles then started missing and 1406 code so I replace EGR valve ran good a few miles the started missing and 1406 again engine is missig and exhaust smell of unburned gas.
#12 of 33 Trouble Code P0141 by mitch16 Sep 24, 2007 (5:25 am)
Does anyone know what this code is or where the sensor is located? My Chilton is worthless!   Thanks.. Replies to this message: jlflemmons (Sep 26, 2007 11:40 am) bptbd (Nov 11, 2007 3:42 pm) lancej (Dec 04, 2007 11:15 am) waynezo (Dec 09, 2007 4:38 pm) and 2 more...
#13 of 33 Re: Trouble Code P0141 [mitch16] by jlflemmons Sep 26, 2007 (11:40 am)
Replying to: mitch16 (Sep 24, 2007 5:25 am) P0141  O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)    Probably in exhaust pipe just behind the converter. Replies to this message: bptbd (Nov 11, 2007 3:42 pm) lancej (Dec 04, 2007 11:15 am) waynezo (Dec 09, 2007 4:38 pm) westcan (Dec 21, 2007 6:23 pm)
#15 of 33 Chevy Blazer error code by bptbd Nov 11, 2007 (3:42 pm)
Replying to: jlflemmons (Sep 26, 2007 11:40 am) I am working on a 2000 chevy Blazer and the error code that came up was P0147. It says that it is an oxygen sensor. Does anyone know what (out of 3) oxygen sensor this may be? Thank you in advance.
#16 of 33 2002 Chevy Blazer Oxygen Sensor Replacement by lancej Dec 04, 2007 (11:15 am)
Replying to: jlflemmons (Sep 26, 2007 11:40 am) I recently had my check engine light come on and upon checking it with a pocket scanner came up with a DTC P0155 (O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1). My Chilton Manual says my 2002 Chevy Blazer 4.3L V6 has more than one oxygen sensor. My questions are   1. Is this the sensor located on the exhaust pipe near the catalytic converter? 2. Is this difficult to replace? 3. Any tips to make the job easier (special tools, etc.)   Thanks   Lance J Replies to this message: waynezo (Dec 09, 2007 4:38 pm) westcan (Dec 21, 2007 6:23 pm)
#17 of 33 Re: 2002 Chevy Blazer Oxygen Sensor Replacement [lancej] by waynezo Dec 09, 2007 (4:38 pm)
Replying to: lancej (Dec 04, 2007 11:15 am) Hi Lance. I think you are right about the sensor location near the converter. I usually go to Auto Zone for diagnosis and parts. They can tell you exactly where it is located and the part is about 1/3 of a GM replacement sensor. I buy Bosch replacements for my 96. It's a simple job. Just unplug it from the wiring harness and use an open end wrench. Start it up first and let it run for a couple minutes before changing the old one. This helps break the old one loose. Don't run it too long or you'll burn yourself. The new sensor usually has anti-sieze already applied to the threads. If not buy a small tube. It makes future replacement much easier. If you have a set of ramps you can drive up on them for easier access. I usually don't use them and don't have a lot of trouble if I suck my belly in. Replies to this message: westcan (Dec 21, 2007 6:23 pm)

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