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Discussion Starter #1
I have a 2002 GMC van 450,000K (279,000miles), the van started having a power problems for the last year. Along with that the fuel economy dropped and finally it threw a PO216 code. Time to the replace the IP, I ordered a remanufactured AC Delco pump and installed it. The van started and ran well except it was pouring white smoke out the exhaust. It is not coolant and the van never did this before. I timed the pump and it didn't change.

I finally broke down and took it to a "specialist" to find the problem, 2 weeks later and 2000 dollars I have my van back and it still pours white smoke out the exhaust. To say that I am frustrated at this point is being kind. I have rebuilt dozens of gas engines and cars of every type but diesels are new to me and to say that lightening it on fire and rolling down a hill is about the best I can do at this point.


So what has been done to trouble shoot this problem:

- "professional" diesel mechanic

- timed it again; no improvement $400

- new injectors; no improvement $1000

- timed it again; no improvement $400

- compression test; all within tolerances $200


At that point I suspected they were as lost as I and were just throwing money at the van hoping to trip over a solution. I am not interested in paying for someones training. I brought the van home and am asking experienced mechanics if you have any ideas what has happened.


The van at this point runs great, starts great but pours out more white smoke than the foggers on the back of the city trucks.


I would appreciate any help or ideas.
 

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I would check the head gaskets to see if the water is getting in them or if your cylinder head/block is cracked, listen to your engine it's telling you something
 

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Discussion Starter #4
Its not coolant, I replaced the turbo gaskets. This only started happening after the new IP install. There weren't any problems like this before.
 

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Did it get a new PMD along with the IP replacement? If not, I recommend that along with a relocation kit.
 

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"Remanufactured" if the first thing that throws a flag for me. Just because you bought a "new" part doesn't mean that the part is good, especially when you get into a remanufactured version. Reminds of many years ago getting a "new" set of front brake calipers when installing the D60 in my K5. Took the shiny calipers out of the box, bolt them on, and brake fluid started pouring out of the connection between the lines and calipers. Messed them for an hour cleaning, new copper washers, etc.... Finally looked at them closely and the machined surface on the calipers where the brake line fittings fit was pitted. The guy at the autoparts store argued with me when I took them back.

Anyway, if the truck did not have the problem before and all you did was install the new IP....and are positive everything is installed correctly and nothing else got damaged at the time.....than I would start looking at the IP.
 

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What is the condition of the fuel lines from the tank to the IP? Air in the lines can cause white smoke. A lot of it, too. I used to be able to make enough smoke that I couldn't see my truck anymore before I fixed all the leaks.
 
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