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Old 10-01-2007, 06:09 PM
dubbster59 dubbster59 is offline
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Question Fuel pump fuse problems on 98 GTP

Greetings,
My 98 GTP 3.8/AT with 125,000 miles keeps blowing fuel pump fuses (3 now)
car history is at 70,000 miles the fuel pump died and was replaced along with the fuel filter. About 1500 miles ago on a trip I was passing a bus and stomped on it hard, car revved up nice and then tach went dead...aftercoasting to a stop I found the fuel pump fuse was blown and replaced it. Stopped in the next town and got a new filter, replaced it and the car ran fine until 300 miles ago when my son was driving away from a stop light (not sure how hard he was leaving) and the fuse blows again. Today my Wife is 60 miles away driving up a long mountain pass and the fuse blows again (wife not happy at all!). This pass usually requires the car to shift down as it is pretty steep. I've looked thru most of the forums but havn't seen anything quite like this....ideas anyone?

Thanks,
Dubbster59

Last edited by dubbster59; 10-01-2007 at 06:51 PM.
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Old 10-02-2007, 08:19 AM
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BNaylor BNaylor is offline
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Re: Fuel pump fuse problems on 98 GTP

Well, it is quite obvious you have current draw exceeding the rating of the fuel pump fuse. i.e. a short. Have you tried replacing the fuel pump relays? There are two relays since the GTP has a two speed fuel pump. The fuel pump and fuel pump speed control relays.

Also, do a visual inspection and check the condition of the fuel pump resistor.



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'08 Pontiac Grand Prix GXP (Dark Slate Metallic) - LS4 5.3L V8
'02 Oldsmobile Alero GL2 - LA1 3400 V6
'99 Buick Regal LS - L36 Series II 3800 V6
'03 Honda CR250R MX - 2 Stroke 250cc
'97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged (Sold)
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Old 10-06-2007, 05:54 PM
dubbster59 dubbster59 is offline
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Thumbs up Re: Fuel pump fuse problems

Thanks a bunch, BNaylor!......... Replaced both of the relays and did a 500 r/t to the football game yesterday and back today through several mtn passes and didn't get a single hiccup. May your team win this weekend also!

Dubbster59
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Old 10-06-2007, 10:38 PM
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BNaylor BNaylor is offline
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Re: Fuel pump fuse problems

You're welcome. Glad it worked out for you and thanks for the feedback.

Great day. Texas Tech over Iowa State 42-17 and Army beat Tulane in OT 20-17. Just need to see how the Cowboys do Monday. Good luck to you and your teams too.



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'08 Pontiac Grand Prix GXP (Dark Slate Metallic) - LS4 5.3L V8
'02 Oldsmobile Alero GL2 - LA1 3400 V6
'99 Buick Regal LS - L36 Series II 3800 V6
'03 Honda CR250R MX - 2 Stroke 250cc
'97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged (Sold)
Timeslip 08/12/06

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