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 Post subject: smoking EHM and bad gas mileage
PostPosted: Tue Apr 20, 2010 7:17 pm 
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Hi,

Maybe some you can help me with my latest issue. I recently did a bunch of work on the Jeep and added the GDE eco tune and the EHM. I don't think my problem is with either of the two mods but now I'm getting a ton of smoke out of the the EHM and am suffering terrible mileage. I'm planning on ditching the EHM because I can't have smoke pouring from under the hood. Of course I assume that this isn't normal for those running it.

I am running a bio blend but I don't think its bad bio The place is reputable and busy.

I'm wondering if I'm having a problem with the turbo. Maybe the intercooler hoses? I have SAMCOs on order but for some reason they delayed shipping them before the volcano and now who knows when they will get here.

Thanks for your help,

FineDining


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 Post subject: Re: smoking EHM and bad gas mileage
PostPosted: Tue Apr 20, 2010 7:42 pm 
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Did you top off the oil to the full mark on the dipstick? Many on this forum have said this was wrong and you are overfilled at that point. I don't have any mods except for GDE, but you may be pushing excess oil vapor out of the EHM?

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 Post subject: Re: smoking EHM and bad gas mileage
PostPosted: Tue Apr 20, 2010 9:32 pm 
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Significant smoke from the EHM is normal on our '05 CRD. (Now that the rear main seal leak is fixed, no oil needs to be added between 6K oil changes @ 75K.) Too much oil may make it worse, but I don't know from experience.

DOC

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 Post subject: Re: smoking EHM and bad gas mileage
PostPosted: Tue Apr 20, 2010 10:06 pm 
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Interesting stuff. Does the EHM affect gas mileage?
Fine-Dining


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 Post subject: Re: smoking EHM and bad gas mileage
PostPosted: Tue Apr 20, 2010 11:00 pm 
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It doesn't.

I used to have the smoke coming from under the hood to and got annoyed so i rerouted my hose all the way to the exhaust with a 90 under the bumper pointing at the end of the exhaust. Now it just looks like the smoke is coming out of the exhaust.

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 Post subject: Re: smoking EHM and bad gas mileage
PostPosted: Wed Apr 21, 2010 1:51 am 
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FineDining wrote:
Interesting stuff. Does the EHM affect gas mileage?
Fine-Dining



If it does, it did it in a positive way for mine. I did the EHM within a week of getting my CRD in '06. Still am getting consistent mixed average of around 24-25 mpg and travel avereage of near 30 mpg.

I cannot see how the EHM would change anything on mpg. Filter plugging can change mpg.

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 Post subject: Re: smoking EHM and bad gas mileage
PostPosted: Thu Apr 22, 2010 9:25 pm 
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Cowpie1 wrote:
FineDining wrote:
Interesting stuff. Does the EHM affect gas mileage?
Fine-Dining



If it does, it did it in a positive way for mine. I did the EHM within a week of getting my CRD in '06. Still am getting consistent mixed average of around 24-25 mpg and travel avereage of near 30 mpg.

I cannot see how the EHM would change anything on mpg. Filter plugging can change mpg.


Do you get a lot of smoke from your EHM? As in small clouds worth of smoke? I just can't believe that there are a bunch of us driving around in a cloud of smoke. I'm also not getting that kind of mileage but I'm also doing a lot of city driving. I just changed my fuel heater assembly and haven't hooked up the heater. Is that a reasonable explanation for bad mpg and potentially excessive smoke?


Fine-Dining


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 Post subject: Re: smoking EHM and bad gas mileage
PostPosted: Thu Apr 22, 2010 10:22 pm 
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FineDining wrote:

Do you get a lot of smoke from your EHM? As in small clouds worth of smoke? I just can't believe that there are a bunch of us driving around in a cloud of smoke. I'm also not getting that kind of mileage but I'm also doing a lot of city driving. I just changed my fuel heater assembly and haven't hooked up the heater. Is that a reasonable explanation for bad mpg and potentially excessive smoke?


Fine-Dining


Having the fuel heater unplugged should not effect mileage or create smoke. The EHM will create smoke, but should not effect mileage.

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