My 2001 Yukon XL will tap when idling and the check engine oil pressure light comes on until I give it some gas then it goes away and tapping stops. What is this problem?

SOURCE: 2002 Yukon XL Denali Problem: When

Most sensors will trigger the check engine light, however the TPS(throttle position sensor) or EGR Valve(exhuast gas recirculation valve) could be potential causes. Does this problem only occur at idle? Is the idle normal in park? Let me know and I can try to assit further.

Hope this helps

SOURCE: 2002 yukon xl no power check engine light

FROM: LustyKid

Denalis are famous for clogged fuel filters. Change the fuel filter first and see what happens, Get the code for the check engine light. It could be you have a clogged EGR ports. Remove EGR valve and clean out the ports, replace with new gasket and see what happens. Advise of results.

SOURCE: Check Engine light-2003 Yukon XL

you have to take it to a auto part store and they can tell you if there are any problems using a key code and then reset it

SOURCE: I have a 2004 GMC Yukon XL. The oil pressure

Most likely the cluster is bad or the wires at the connector have issues.

SOURCE: 2001 gmc yukon xl was jerking, cut off. will not start.

it sounds like the fuel pump might have died, or blew fuse or relay see if it gets fuel at the motor