Fuel pump

Asked by GuruYSZFJ Mar 10, 2018 at 12:06 PM about the 2006 Buick Rendezvous CX FWD

Question type: Maintenance & Repair

I just had my fuel pump replaced in my 2006 Buick
Rendevouz and when my mechanic showed me the
old pump the electrical relay was fried. Now I am
terrified that this could happen again as the car
does have some minor electrical issues and if it
does happen again could it ignite the fuel and
explode? Or is the pump even submerged in the
fuel tank? Thank you for your help.

4 Answers


It is very common for the fuel pump relay to get burned up, that is why they recommend replacing it when the fuel pump is replaced. As far as a fuel pump shorting out and causing an explosion in the fuel tank there has to be oxygen present to do so and in the fuel tank there is no oxygen only hydrocarbon vapor, even with the fuel cap off the concentration of hydrocarbons is still too high to allow combustion to happen. I to was curious about this so I made up an experiment with a shorted pump motor and only 5 gallons of gas in an open fuel tank dropped the shorted motor in and applied power too it, I heard the arching but no boom, it just wouldn't light. So explosions are very unlikely. Yes the fuel pump relay will given time burn again just due to the load increase as the pump wears.

2 people found this helpful.

My low fuil light stays on with gas in it! A car diagnostic checker says it's a fuil tank pressure sensor! I will not start either! What's going on is it my fuil pump?

2 people found this helpful.

I have a 2007 rendezvous I just put a fuel pump in it and for some reason there's no gas going up to my engine what could be the problem but what can I do to get my car back on the road open for suggestions

7 people found this helpful.

Did you check the fuses and the relay?

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