My Wifes GMC yukom has been hard starting and usually fires on the second try. I took it into the dealer and they said it was a bad fuel pump. If it was a bad fuel pump it probably would not run for long? this problem has been going on for a year. You would have thought it would have quit by now. Just wondering if it is the Fuel Filter that is plugged? Yes I should have looked at it a while back but..... Any sugestions or thoughts would be appreciated.

 

Could be a number of things. EDIT: Could be Fuel Pressure Regulator.
http://www.tahoeyukonforum.com/forum...ad.php?t=10910

If you haven't done the 100,000 tune up yet, I strongly advise you do that as well.
Could be a starter going, could be it's not getting proper spark, could be other things.

Start with the cheapest, which is the fuel filter and work your way up from there.

 

Try this.. ( I am no mechanic nor do I claim to be) go out. .turn on the key.. wait 5-7 seconds (maybe have someone standing by rear to hear pump go off) then try to start it and see if it will work or not.. (this gives the pump time to pressurize) and as others have said.. fuel filter is cheap and easy.. much easier than a pump in the tank.