Hello, yes it can, I'll look up some service information on your vehicle, but that's a vacuum leak. And on a cold engine it requires more fuel to start and run until its warmed up, and this is causing the air fuel mixture to be lean (less fuel). I believe these engines have a MAP sensor and not a Mass air flow sensor, and a MAP sensor will be able to compensate more for vacuum leaks, but it still needs to be fixed. You may find other rubber hoses or grommets that have hardened over time and are not sealing well. Have you checked the spark plugs to see what condition they are in? And has the Check engine light come on at all? What size engine do you have? 3.8 or 3.4
Circled in orange is the MAP sensor, make sure that it is sealed into the Intake manifold very well. The wiring diagrams show a Mass air flow sensor also, do you have a sensor on the air intake boot near the air filter housing?
It would be a good idea to replace the fuel filter now also, they are pretty easy on these vehicles, it will be somewhere about halfway from the engine to the gas tank and usually on the frame rail under the vehicle in line with the fuel line feeding the engine. It will help with your starting issues. And save the fuel pump from premature failure.
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Monday, January 23rd, 2023 AT 8:44 AM