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97 Chevy Tahoe is hard to start , problem is worse

Replaced fuel pump 2 yrs ago and still have starting problem. Turns over engine but acts like it's not getting enough fuel to start.

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This is just a guess- but I would try changing out the coolant temp sensor- this tells the computer that the engine is cold and needs a bit more fuel to start. If this is happening even when warm- look for a vacum leak.

Posted on Sep 26, 2009

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Did you replace the fuel filter,I would start with a full tune-up,plugs, wires,cap and rotor etc...

Posted on Sep 26, 2009

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No power, hard starts


Have you replaced the fuel filter, spark plugs and wires? A plugged fuel filter will cause a fuel pump to go bad because it works harder to pump. It also may cause less pressure. Plugs, wires cap and rotor will cause lack of power and fail you on a load if they haven't been replaced for a while.

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Hello, yes the check valve is in the fuel pump assembly. The check valve is leaking and the pump will burn out soon. Unfortunately the aftermarket fuel pumps can be very unreliable. A good portion of problems we see on this site are from people who replace the pump sometimes twice and it still doesn't work.

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possible bad pump, stranger things have happened.

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