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Old 10-25-2019, 08:22 PM   #1
Ray_Sutton_150
 
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Default 2011 Sprinter (down on power)?

Last week, my van suddenly dropped to what felt like 25% HP on the way home. I parked it for a couple hrs and drove it to the dealer. However, after sitting for a couple hrs it ran fine on the way to dealership and seemed to be have 100% HP potential. The Mercedes dealer had it for a week and was unable to find any issues, and no codes except for "glow plugs".

So, i pick up the van today and it was immediately way down on horse power when i left the dealership, so i pulled over and cycled the ignition key switch, then the van came back to life and i has full power again. But, i was down on power again after i stopped and turned the van off.

In addition, right before i loss full engine performance, the van kinda gerks a bit like it going in and out of gear.

I'm at home now, and about the check the fuel filter, air filter and hopefully change the glow plugs if i can find a parts store with them

any ideas???
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Old 10-25-2019, 08:26 PM   #2
OrioN
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Default Re: 2011 Sprinter (down on power)?

Quote:
Originally Posted by Ray_Sutton_150 View Post
Last week, my van suddenly dropped to what felt like 25% HP on the way home. I parked it for a couple hrs and drove it to the dealer. However, after sitting for a couple hrs it ran fine on the way to dealership and seemed to be have 100% HP potential. The Mercedes dealer had it for a week and was unable to find any issues, and no codes except for "glow plugs".

So, i pick up the van today and it was immediately way down on horse power when i left the dealership, so i pulled over and cycled the ignition key switch, then the van came back to life and i has full power again. But, i was down on power again after i stopped and turned the van off.

In addition, right before i loss full engine performance, the van kinda gerks a bit like it going in and out of gear.

I'm at home now, and about the check the fuel filter, air filter and hopefully change the glow plugs if i can find a parts store with them

any ideas???
Dirty, sticky or malfunctioning EGR valve.
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Old 10-25-2019, 11:31 PM   #3
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Default Re: 2011 Sprinter (down on power)?

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Originally Posted by OrioN View Post
Dirty, sticky or malfunctioning EGR valve.
thx, i just took it out and cleaned pretty good, but i im not sure how to bench test it. i then placed it back into the van, went for a 15 min drive, parked and waited for 10 mins, then drove back home under minimal power. So, i suppose this valve is sticking closed when its hot. ill call the dealership to see if they have new one on hand
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Old 10-26-2019, 12:44 AM   #4
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Default Re: 2011 Sprinter (down on power)?

for fun, i tried to operate the van with the EGR unplugged (disconnected the wiring hardness) in an effort to not allow the valve to open. This did nothing good, and the van is still down on power. still trying to the a new ERG today
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Old 10-26-2019, 09:05 AM   #5
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Default Re: 2011 Sprinter (down on power)?

Hmm.. I had something that sounded similar, except I got an O2 sensor code.

Turned out to be a split pipe.

Mine would be OK on the flat at town speeds but as soon as you put load on it or went up hills it would run out of energy.
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Old 10-28-2019, 10:00 PM   #6
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Default Re: 2011 Sprinter (down on power)?

update: a new EGR valve fixed my issue and save my weekend, thank you very much!!!
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Old 10-28-2019, 10:49 PM   #7
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Default Re: 2011 Sprinter (down on power)?

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Originally Posted by Ray_Sutton_150 View Post
update: a new EGR valve fixed my issue and save my weekend, thank you very much!!!
I'll PM you my Paypal acct. details....
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