Last post on Aug 06, 2012 at 8:16 PM
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Chevrolet Blazer, GMC Jimmy, SUV
#31 of 80 service engine codes on my 95 blazer
May 30, 2008 (6:16 am)
my service engine soon light came on i went to auto zone for a diagnostic test the codes that came up are
I changed the heat sensor the service light still apprears any suggestions
Jun 02, 2008 (2:45 pm)
I have a 2001 Chevy Blazer 4.3L 4x4.
I had some codes come up and i replace the smog pump and the drivers side check valve for the secondary air injection system. the valve burned up and so did the hoses so i disconnected everything until i got a new check valve. the pump was fine besides some debris which i cleaned out, but i hard wired it to check n it was still working. the day after i fixed everything i was driving it and the check engine light started flashing. i pulled off and shut the blazer off, turned it on n it stayed on. it kept flashing when i did over 30 mph or 1500 rpm.
the codes i pulled were:
PO102: mass airflow sensor circuit low frequency
PO141: O2 sensor bank 1 sensor 2
PO300: random misfire
PO410: secondary air injection system
PO463: Fuel level sensor 1 circuit high voltage
B2961: key in ignition circuit malfunction
CO265: EBCM motor relay circuit
CO245: EBCM Control valve circuit
any ideas where to start? what is necessary right now and what i can hold off on? im broke and this is my only vehicle also if you have an idea of how much the parts will cost that would e helpful.
#33 of 80 Re: Lots of codes [66chevytruck]
Jul 14, 2008 (9:21 pm)
The first thing to do is to clear all these codes, and see what happens. If the SES light comes on again, read the codes again and see what youve got. Some of these codes could have accumulated over time, and don't relate to aything anymore.
#34 of 80 Re: "New" '95 Blazer with some problems - codes [repairdog]
Sep 09, 2008 (8:19 am)
is the EGR hard to change because I have the same code come up today 1406 and the inside of the vehicle smells like gas. Now my rpm keeps going up and down.
#35 of 80 95 chevey blazer
Sep 09, 2008 (9:33 am)
My check engine light came on and the blazer was running rough so I pulled in to auto zone and had them hook up the machine to it and code p1406 came up. I was told buy a dealer that it was a EGR sensor. So I have 3 questions for any one that can help me 1) will it make the rpm needle go crazy (up and down) 2) it it hard to replace and 3) where is it located?
THANK YOU IN ADVANCE
FOR YOUR HELP
#36 of 80 Re: 95 chevey blazer [gorbey]
Sep 09, 2008 (6:15 pm)
1. It can make the idle irratic
2. Located on the front of the engine. Go to Autozone online and you can look up the part and see what it looks like.
3. Easy repair.
#37 of 80 2002 blazer no power to tailgate
Dec 26, 2008 (9:45 pm)
hey has any one had this trouble
I have checked fuses and replaced mir 3amp fuse that should run the tailgate and door lock and power mirrors as per chevy but still no go.
key fob will not open up tail gate as well.
any ideas ?
#38 of 80 Bad relay
Dec 27, 2008 (6:07 am)
If the accessory control switches are functional, it is likely that the relay for those accessories is bad. Replace the power door lock relay because it is also common to the other accessories you mentioned. You can use Power Door lock Relay from AC Delco F1788, $42 (GM 88922752 - MSRP $78 ); Standard Motor Parts RY246, $26; or Air Tex 1R1269, $23. That relay was used on many GM vehicles with power door locks since 1980. The relay is located behind the headlight control switch cluster on a 1989 - 1995 S10 Blazer. I am not sure where it is located on other GM vehicles. If a auto repair shop replaces the relay, they will charge 1/2 hour labor cost plus the cost of the relay. That will be about $100+ total .replacement cost.
A bad relay can also cause a 200+ ma parasitic power drain on the battery even when the ignition key is off. If the vehicle sits for a week or two without being started, the power drain could completely discharge the battery, especailly if the battery is over 18 months old.
#39 of 80 Codes P0719 & P0753
Jan 02, 2009 (10:51 am)
Any idea what these codes mean and how to repair the problem?
1996 Blazer LT 4.3 190,000 miles & still runs good
#40 of 80 Re: Codes P0719 & P0753 [RABIII]
Jan 04, 2009 (8:59 pm)
P0719: Do your brakelights work? This is the code for low voltage in the brake light circuit. Blown fuse?
P0753: Transmission solenoid related. How is the transmission shifting? Could be anything from a shorted harness to the tranny to a bad shift solenoid.