0
Your 1998 Chevy blazer service engine soon light came on so you ran a diagnostic check it said that the o2sensors were bad so you changed them and reset the codes two days later the light came back on?
Wiki User
∙ 18y ago
AutoZone is wrong... 99% of the time an O2 sensor code (unless it is a heater code) doesn't mean the sensor is faulty. It means that the O2 sensor is seeing the problem. The problem rolls down hill the O2 sensor is at the bottem of the hill. If you get a downstream sensor code "catalist efficency" the cat is bad. If you have a lean or rich code or a switching code along with one there is a problem with the combustion. Like the air/fuel ratio being off because of a vacuum leak, fuel injector leak, or something before combustion.
Wiki User
∙ 18y ago
Add your answer:
Earn +20 pts
How do you turn off the service engine soon light on a 1996 blazer?
You can get a diagnostic scanner to get your check engine light to turn off. It is best to take your car into a service center because the light is on because there is a problem with your car.Ê
Why is engine light is on 97 Chevy Blazer?
To tell you to read the diagnostic codes.
What is the port for under the dash on 1988 S10 blazer?
That would be the OBD I Diagnostic Connector.
I ran a diagnostic check on my 1998 Chevrolet Blazer and it said that the o2 sensors were bad so i changed all 3 then reset the codes my service engine soon light came back on what could be the proble?
Did you run another diag test? Are you certain that you used the correct O2 sensors? Did any of them get bent or damaged during installation?
I have a 2001 S10 blazer have replaced O2sensors and E vap blower and hose kit but computer will not clear but the light is out Fails inspection E vap and catalyst codes?
for the evap try changing your gas cap. most likely a vacuum leak. as for the catalyst code if its reading catalyst below threshold you need to change the catalytic converter. that's most likely your problem if you have changed the down stream o2 sensor.
Why does 93 blazer sputter after it warms up?
need to run diagnostic should throw a code is check engine light on?
Will a vortex motor out of a 2002 blazer fit in a 1998 blazer?
The Vortec Motor hasn't changed sence it came out. it will fit perfectly.
What is diagnostic code 54 on a 92 Chevy s10 blazer 4x4 4.3 v6 tbi?
fuel pump low voltage
Why is the Service engine light is on for a 99 Chevy blazer?
Maybe you should service the engine soon. :P
Where can i find a Fuel line diagram for military blazer?
The service used a standard civilian (contracted) Chevy Blazer during the 90's.
Where can you find a vacuum diagram for 1995 Chevy Blazer 4x4?
You can find a diagram for the vacuum system in a 1995 Blazer 4x4 will be located in the Blazer service manual. The manual can be purchased in most auto parts.
You changed the oil seals on your 88 s10 blazer but it still leaks why?
There are many oil seals in that vehicle, need to know which ones you changed.
