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  #1  
Old 11-19-2007, 07:50 PM
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Default 98 Blazer won't accelerate

I own a 98 Blazer LS with about 67,000 miles on it. I just bought it a few months ago and everything was fine until a few days ago when I got on the highway and it was very hard to accelerate. If I let of the gas a little the engine would get fuel but as soon as I would press on it a little harder it wouldn't do anything. After I pulled over and looked under the hood for a few minutes it started up and ran fine for a little bit and ended up doing the same thing. Also, I've noticed that a few days prior it has been hard to start. I'm thinking fuel filter.....any suggestions?
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Old 11-19-2007, 08:46 PM
 
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Default RE: 98 Blazer won't accelerate

Im having a similar problem right now, it feels like its holding back, i let off the gas and then get back on it and it goes fine. i thought it could be fuel or air filters?
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  #3  
Old 11-19-2007, 10:35 PM
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Default RE: 98 Blazer won't accelerate

I'm pretty sure its not my air filter because I couldn't go over 20 mph. I'm hoping its just the fuel filter because replacing the pump would be horrible timing considering the holidays are coming.
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Old 11-19-2007, 11:04 PM
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Default RE: 98 Blazer won't accelerate

If you haven't changed the fuel filter for a while it's not a bad idea to do so. When you change the filter, tap out the fuel onto a white rag and see if you see any black in the fuel. Black in the fuel filter is an indication of wear in the fuel pump ( black carbon brushes)
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  #5  
Old 11-21-2007, 05:10 PM
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Default RE: 98 Blazer won't accelerate

Changed the filter and I still have the same problem. The acceleration problem only happens after I drive for a little while. If I stop the truck for a minute it drives fine and eventually happens again. Also, when I pulled the old filter I notced lots of black in my fuel line.
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Old 11-21-2007, 09:17 PM
 
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Default RE: 98 Blazer won't accelerate

amazing!..im having the same prob on my 97. feels like the converter is locking up and when i shut down the vehicle it unlocks till i get to like 40 mph. the 4.3 feels like its straining against the converter.
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Old 11-21-2007, 09:17 PM
 
 
 
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1997, 35, 98, 99, accelerate, blazer, chevy, gas, glass, mph, pack, problems, properly, step, wont


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