you will still need to replace the fuel pump to fix the lean code.
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Just had this exact same problem on my 07 LT w/105,xxx miles. Replaced the fuel pump myself with one out of a salvage with 38,xxx (I know, probably not the best move, but only cost me $40). Not a hard process if you're a little mechanically inclined and have a jack and some stands and basic tools (15 mm socket, flathead screwdriver, hammer). Only took me about 1 1/2 hrs.
Not the ideal solution, but will work. |
At 135K, your fuel pump is likely on borrowed time. A leaking fuel injector could also cause the pressure drop and decreased mileage but it should show up as a rich condition. Isn't there also a relief valve on the injector rail to return to the tank?
If you're planning on running the car to 200K, you might want to change pump and injectors. |
Originally Posted by Don06
(Post 509260)
At 135K, your fuel pump is likely on borrowed time. A leaking fuel injector could also cause the pressure drop and decreased mileage but it should show up as a rich condition. Isn't there also a relief valve on the injector rail to return to the tank?
If you're planning on running the car to 200K, you might want to change pump and injectors. |
Originally Posted by Lucky
(Post 509282)
The fuel psi regulator (relief valve) is built into the fuel pump assembly. The hhr uses a returnless fuel system. And yes if it had a leaky injector it would probabiliy have a rich code and cyl. misfire.
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Originally Posted by Don06
(Post 509565)
It was easy to change on the fuel rail. A little harder in the tank. Wish they would have access panels so you don't need to drop the tank.
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