- #2870 of 3259
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Heater won't work in our 1998 chevy blazer
by pribylcrew
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Jan 14, 2007 (6:59 pm)
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 The heater won't work, I know that the c02 sensor has to be replaced. The heater didn't work about a week ago, we just had a CD player put in and now the heater won't work?! I'm hoping someone knows something. Any suggestions?
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- #2871 of 3259
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the heater won't work
by pribylcrew
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Jan 14, 2007 (7:02 pm)
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Actually, a week ago the heater wouldn't work and we played with the knobs for a bit and it kicked on. but now today it won't work at all and there is a weird buzzing sound that you can hear outside of the car but not inside. I wonder if that's something seperate or related?
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- #2872 of 3259
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Re: Buzzing from relays behind glovebox & headlights go out [jax6]
by repairdog
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Jan 15, 2007 (6:18 am)
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Replying to: jax6 (Jan 14, 2007 2:33 pm)
Headlight relay chatter possibly. Think its behind the glove box on 97. Also the known problem ignition switch - actually the connector and wiring).
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- #2873 of 3259
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Re: the heater won't work [pribylcrew]
by repairdog
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Jan 15, 2007 (6:22 am)
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Replying to: pribylcrew (Jan 14, 2007 7:02 pm)
Air in/clogged heater core will cause a strange sound in the core thats behind the dash pass side. Dex cool needs to be flushed 3/36 do not believe the GM 5/100 crap. If not done in the last 2-3 years get it flushed. If has been done buy 3' of 5/8 and 3/4 heater hose and remove the hoses at the firewall (cover dist so it stays dry) and flush the core with a garden hose and that may do it.
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- #2874 of 3259
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Re: how do i go about replacing an oil cooling line?? [repairdog]
by jerseytommy
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Jan 21, 2007 (7:15 pm)
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Replying to: repairdog (Dec 22, 2006 3:58 am)
I've got the 4wd, so looks really tight to get to block side connection. Using basic tools, will you recommend way to lift engine 1" as you mentioned? Do you need to loosen engine mounts?
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- #2875 of 3259
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Re: how do i go about replacing an oil cooling line?? [jerseytommy]
by repairdog
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Jan 22, 2007 (3:16 am)
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Replying to: jerseytommy (Jan 21, 2007 7:15 pm)
Many people just use a block of wood under the oil pan and a floor jack off set to the drivers side, but the danger is cracking the rubber engine mount. After positioning the wood/jack, you access thru the drivers side wheel well flap, you can remove the long bolt that holds the mount to the frame and then you jack the mount lifts - but access is a pain. Same for that rear bolt on the line to the block which requires access from the front with an 18-24" extension. Then do not forget the little 3/4 inch long bolt holding the lines to the front edge of the block - again a pain so you have to find best access angle for small socket (think I used 1/4" drive racket on that one and all sockets are metric). Take your time.
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- #2876 of 3259
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Acceleration problem
by tenpinarm
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Jan 22, 2007 (2:50 pm)
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I have a 99 Jimmy. Under normal acceleration it surges up and down until I'm at cruising speed. It seems to run ok until I step on the pedal and then it hesitates before speeding up.The fuel filter has been changed.If I put the pedal to the floor starting up it seems to stop the problem most of the time.
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- #2877 of 3259
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Re: Acceleration problem [tenpinarm]
by repairdog
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Jan 22, 2007 (4:29 pm)
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Replying to: tenpinarm (Jan 22, 2007 2:50 pm)
This could be anything. What mileage and what have you done to it? Any SES codes? By 100k time for cap/rotor/plugs.
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- #2878 of 3259
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Acceleration problem
by tenpinarm
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Jan 23, 2007 (7:45 am)
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According to my mechanic the only code coming up relates to the 4wd.He said he's never seen this problem before. On another forum there was a reference to the LEGR valve getting a carbon buildup.It has 95,000 miles. Beside plugs and possibly plug wires what should I replace? The air filter was changed about 8,000 miles ago.
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- #2879 of 3259
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Re: 98 Blazer with problems starting [joshsnider]
by dep24
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Jan 23, 2007 (8:38 am)
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Replying to: joshsnider (Jan 05, 2007 12:39 pm)
This is the ignition. Same thing happened on my 97. I had to get it done at the dealer because by the time you mess around with keys and stuff it ends up cheaper at the dealer. Still not cheap.
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