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09-06-2007, 11:48 PM
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#1 | |
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AF Newbie
 Join Date: Sep 2007
Location: LAS VEGAS , Nevada
Posts: 11
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how do i tell if fuel pump is bad
2000 blazer just shut off while driving then would not start again. this also happened about a month ago but started right up. I don't seem to hear the fuel pump go on.At first i did but now i don't. I hate to have my brother change the fuel pump and it be something else. How hard is it to change the pump? Also the fuel guage doesn't read properly after 1/2 a tank once it showed half a tank then all,of a sudden the low fuel light went on. I just bought the suv a month ago 103,000 miles. Other than this it was running like a champ and is in excellent condition,so i thought. Is it difficult to drop the tank on this vehicle? My brother has done a fuel pump before but not on an suv.
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09-07-2007, 08:45 AM
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#2 | |
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AF - Advisor
 
Join Date: Mar 2004
Location: Nashville, Tennessee
Posts: 2,920
Thanks: 113
Thanked 41 Times in 39 Posts
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Re: how do i tell if fuel pump is bad
A fuel pressure test gauge kit is available at Harbor Freight and most chain type auto parts stores. An old Freon 12 gauge kit has the right screw on valve too if you happen to own one.
Here's the test port.  You might check the fuel pump relay, my '97 had them in the glove box....swap it with one of the other relays. |
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