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10-21-2008, 03:20 PM
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#1 | |
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AF Newbie
Join Date: Oct 2008
Location: manchester, Missouri
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1998 blazer runs well except on hills?????
1998 4 wheel blazer runs fine except when on hills, no check engine light or anything comes on. i have replaced the fuel filter, fuel pump, and tps. Anyone have any ideas before i spend more money chasing down this problem? thanks
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10-21-2008, 03:25 PM
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#2 | ||
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AF - Advisor
 
Join Date: Sep 2005
Location: New London, Missouri
Posts: 16,690
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Re: 1998 blazer runs well except on hills?????
Quote:
How is the basic tune up end? Good AC - Delco plugs? Any cold air intake stuff or cone filters? Have you tested the fuel pressure? What is the engine vacuum reading at idle and at 2K rpm? Do you ever see the checking light flash? Can you feel a miss fire on a hill? Why was fuel pump and tps replaced? Ac Delco fuel pump?
__________________
Remember proper testing gives us the answer to many problems. MT |
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10-21-2008, 03:43 PM
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#3 | |
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AF Newbie
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Re: 1998 blazer runs well except on hills?????
The fuel pump was really loud, not just normal wine/hum sound, and also was suspected of the power loss on hills. then when that didn't work a mechanic guessed at the tps. Fuel pressure is good. no light ever comes on, and i am always keeping an eye out for it. no miss fire just wont accellerate on hills, you push the petal and then nothing push a little more then a short burst of acceleration and back to 1300-1500rpm and repeats
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10-21-2008, 03:51 PM
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#4 | |
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AF Newbie
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Re: 1998 blazer runs well except on hills?????
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10-21-2008, 03:59 PM
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#5 | |
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AF - Advisor
Join Date: Sep 2005
Location: New London, Missouri
Posts: 16,690
Thanks: 5
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Re: 1998 blazer runs well except on hills?????
You need to give us some info we can sink our teeth in.
Before we can help you? Ac Delco plugs? Ac delco fuel pump? When was the last tune up? What kind of air filter system? What is the engine vacuum readings? What is the good fuel pressure readings? Have you tested the fuel pressure on the hills?
__________________
Remember proper testing gives us the answer to many problems. MT |
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