Do you know what the problem may be?

Possible bad water pump bearing locking pump on and off. As this can lock the belt, this could affect AC

Questions, Troubleshooting Help & Support Page 8 - Fixya

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Why does my 2012 dodge ram 1500 fuel pump stay on... Dodge Cars &. ... My 2004 MERCURY Monterey is sputtering/ bucking backfiring and smells of gas.

2005 PT Cruiser GT misfiring and bucking - Edmunds

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Mar 24, 2010 - I put in some fuel injection cleaner and filled the tank with Premium. ... itbucking, sputtering at low speed until i can pump the gas enough to get ...Missing: monterey ‎smells

Sputter/Stutter and Loss of Power - Ford Explorer and Ranger ...

www.explorerforum.com > ... > Stock 1995 - 2001 Explorers

Jun 2, 2010 - 19 posts - ‎6 authors
If the sputter got real bad, I could smell what smelled like weed eater gas inside the cabin. As you could also imagine, there is a loss of power.

If the engine has a miss or power loss, the check engine light should be on.
Is it ?

MY KUGA 10 PLATE DASH FLICKERS ON AND OFF THE SPEEDO AND MILEOMITER AND THE RED ONE IN BETWEEN ..

Bad fuel pump,a possible, on the shutting off issue.
Loss of power, most likely a separate issue.
Need a clean fuel filter. It should last two or three years or 30,000 miles though.

Hi
Most likely that will be your EGR valve, thats "Exhaust Gas Recycler" valve, it basically forces any unburnt fuel back into the engine to re-burn thus cuts the emissions. when they go you will lose a lot of power and the car will almost feel like it is twice as heavy. you can clean this part with carb cleaner and it may work again, It is strange how your ford dealer have not picked it up.

Does the engine light come on at all?

Also other thing it could be your air mass sensor, agaian you can clean this and it may still work, this part regulates the air to mix with the fuel you would lose power with this also and the car would hold back.

Let me know if you need specifics.

Regards
Dan

I've done quite a few of these cleaning procedures with relative success. Occassionally one comes back and needs it again and next week I'll be replacing my first turbo. Most people are far too lazy to go through the entire procedure. It should take a whole day. Also, the pcm software NEEDS to be at the latest update level. Some things you can do are avoid unneccessary idling, use your exhaust brake (if equipped), and don't drive it like a girl scout. It's a 400 hp turbo diesel built to do WORK, not cruise to church on Sunday. If you don't work with it enough to utilize the power you should throw 6 or 800 pounds of cinder blocks in the back and head out to some good hills or mountains every couple of weeks. Short trips are also bad for it. Atleast once a week, I'd take it on a 20 mile or longer ride at continuous speeds no less than 55 mph. It's an awesome truck and could relocate the pentagon if the need arises. It was built to work. It wants to work. Try not to waste that on soccer practice.

the recommended mileage is 100,000, how do I know? I am a Ford tech.

Chris I would get the coolant system pressure tested and it might show up the problem

I'm assuming that that smoke was more previlant while going uphill because that's when the turbo would be really spolling up to max psi. I would guess that if you really got on the gas hard and got the turbo going even on a flat surface, that you would notice the smoke too. The loss of power and the white/grey smoke are tell tale signs that your turbo is bad or starting to fail. Good luck!