99 s10 blazer lt 4x4 4.3l troubleshooting?
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99 s10 blazer lt 4x4 4.3l troubleshooting?
So if I haven't ran my 99 blazer LT in a day or two it has trouble starting takes a couple of turns, then recently started hearing a hissing sounds coming from the muffler. i did hook up a scanner to the blazer and it was saying it is running to rich so I did a full tune up on it. including a new fuel filter. It also is not got a lot of power when I am getting on the highway or speeding up on the highway like it should. Plus my gas mileage is down from what it should be after I changed the fuel filter it jumped to 18-19 mpg then once I heard the hissing sound it is back to 14 mpg. when is has trouble starting and when it does it runs really rough I push on the gas pedal and it doesn't rev up like it should and it sputters bad. I took it to a friend that knows a lot about cars and he thought the noise sounds very unusual. I was told it could be many things. i think it may have a small leak in the exhaust and bad o2 sensor but would like to know for sure what it could be or is.
Has a cold air intake, replaced the EGR VALVE, AND NEW PLUGS WIRES, CAP, ROUTER, FUEL FILTER???
Has a cold air intake, replaced the EGR VALVE, AND NEW PLUGS WIRES, CAP, ROUTER, FUEL FILTER???
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Hi mnwild88,
So what ever happened with your Blazer? I'm thinking some onboard processing unit was the source of the problem.
I recently inherited a dead 1999 Blazer LT and spent $4700 to revive it. It is very clean and has 45k orginal miles. Hopefully is will run okay for a long time.
So what ever happened with your Blazer? I'm thinking some onboard processing unit was the source of the problem.
I recently inherited a dead 1999 Blazer LT and spent $4700 to revive it. It is very clean and has 45k orginal miles. Hopefully is will run okay for a long time.
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