how often do you need to replace a fuel pump in a 2002 chevy blazer with 143000 miles. I was told that the pumps go out after 70000 miles and is that true?


Asked by Jan 01, 2015 at 03:16 AM about the 2002 Chevrolet Blazer 4 Door LS

Question type: Maintenance & Repair

The check engine lights was on for a short time then went off.Drove the car to work park it
and and could not get it started again.

4 Answers

Tom Demyan

Fuel pumps do get weak and fail. No certain amount of mileage. If the fuel filter is replaced often, it might last longer. If it isn;t starting due to a failed fuel pump and you have no fuel pressure, then it needs to be replaced. Check if that is the case first. It might be ignition related. Scan the car for the codes while your at it, since the CEL was or is on.

2 out of 2 people think this is helpful.

NHTSA cites sulfur content in fuel as a large contribution to fuel pump failure when petitioned about GM pumps failing in GM cars. the best you can do is buy name brand gas from a station you trust. their additives are one difference, the cleanliness of their transport truck and their tanks and pumps need to be something you can trust. any way to reduce dirt. Including your check and replacement of your filter. dont wait. dump and blow the contents back into a jar and see what you are trying to pump. metallic particles means clean out the tank completely.


When it dies. There's no set time to do it. HTH. -Jim


We need more information. It "won't start" could mean anything. Does the engine turn over (try to start)? More information and we can try to help.

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