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Engine problem

Discussion in 'The Garage' started by sunnyc123abc, Jan 31, 2007.

  1. sunnyc123abc

    sunnyc123abc 1/2 ton status

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    So i took the Blazer up to Big Bear in Dec. , and as we were up there, my 305 ran like crap. I think it was probably the elevation. But as we came down from the mountain, it ran better, but not like it did before we went up. Now the exhaust smells horrible, and it isn't running like it used to. Could it be the timing or something. Or maybe something to do with the knock sensor, cause i think it came loose.:confused:
     
  2. Chaddy

    Chaddy 1/2 ton status GMOTM Winner

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    Is it smoking? Is the gas old? Are your plugs/wires/cap/rotor good?
     
  3. sunnyc123abc

    sunnyc123abc 1/2 ton status

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    No, its not smoking, gas is new, and plugs look ok. Haven't checked the cap or rotor yet, but before i left, they looked fine.
     
  4. Can Can

    Can Can Pusher Man Staff Member Super Moderator

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    It sounds like your catalytic convertor might be plugged up.......
     
  5. sunnyc123abc

    sunnyc123abc 1/2 ton status

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    well, I can hear air escaping from around it. I think it might be the joint. What would cause it to plug up?
     
  6. Chaddy

    Chaddy 1/2 ton status GMOTM Winner

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    That happend to my buddy's blazer.....He shoved a broomstick in there to break it all up. He then started it, gassed it, and out came all kinds of crap. It still runs good and this was like 6 years ago:eek1:
     
  7. thfonz98

    thfonz98 1/2 ton status

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    smell light rotten eggs? its the cat

    they plug up once in a while too, never happened to me but friends have had it happen(Newer body style burbs). Not a big problem as they have run fine for a long times..
     

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