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.
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
To tell you to read the diagnostic codes.
That would be the OBD I Diagnostic Connector.
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?
The Vortec Motor hasn't changed sence it came out. it will fit perfectly.
need to run diagnostic should throw a code is check engine light on?
Maybe you should service the engine soon. :P
fuel pump low voltage
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.
The service used a standard civilian (contracted) Chevy Blazer during the 90's.
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.
There are many oil seals in that vehicle, need to know which ones you changed.
probably no because Chevy changed the type of fuel injection and it probably operates at a different pressure.
I just changed one in a 97 blazer Their well known to go out the diafram leaks advance auto sells them $100.
time for an oil change
The wiring diagram for a 1983 Chevy Blazer can be found in the service manual. It contains a detailed layout of where each wire goes and its function.
It means the crankshaft and camshaft sensors arent correlated. Which basically means your distributor isnt timed correctly.
Have vehicle scanned to determine problem
It is inside of the fuel tank. You will have to remove the tank to service it.
Into the low side service port.
Your 1996 Chevrolet Blazer may not start due to a faulty ignition switch. The electronic fuel pump may also be faulty and need to be changed.
I had my 200 blazer scanned an was told it was a bad fuel tank cap. I replaced it and the light is still on.
unhook battery or scan tool will do it
It does not have one. You have to remove the fuel tank to service the pump.
The exploded view of a 1996 Chevrolet Blazer IFS can be found in the service manual of the vehicle. If you do not have theÊservice manual, it can be obtained from the nearest Chevrolet dealership.