335d loss of power, roughly idle during drive home from work

EvanTheBruce · 12-10-2016, 08:30 PM

It's about 22* F out right now. On my way home from work I was cruising at about 80mph the whole way, as soon as I got off on my exit the car started to lose power and would not shift out of gear until about 3500 rpm. I also noticed an unusual amount of noise coming from the engine.

I'm assuming I have a fuel gelling issue? Or maybe my car has a bad injector? Had it tuned by BPC a month ago, stage 2+ and full delete and an EGR delete. The car isn't throwing an SES light and I don't have my laptop to plug it in.

Here's a video of my condition. Any suggestions?

JOHNNYBRAVO1 · 12-10-2016, 09:46 PM

That's what mine sounded like before I replaced my injectors

Torqu3 · 12-10-2016, 10:02 PM

Yeah, sounds like the injectors might be going bad.

geost · 12-10-2016, 10:08 PM

Is there any benefit to driving without the plastic engine cover?

EvanTheBruce · 12-10-2016, 11:41 PM

Quote:

Originally Posted by geost

Is there any benefit to driving without the plastic engine cover?

I bought this car second hand. Somehow the cover was cracked and the PO threw it away. I haven't gotten around to geting a replacement.

Persian Whisperjet · 12-11-2016, 05:53 AM

Quote:

Originally Posted by geost

Is there any benefit to driving without the plastic engine cover?

Not really but I leave mine off as it facilitates access to the engine and the price of more engine noise.

EvanTheBruce · 12-11-2016, 05:29 PM

Update for you guys:

As I suspected my issue was caused from fuel jelling. The station I filled up at definitely has summer blend stll in their tanks. I drove the car to a local farmers house and put 2 gallons of kerosene in then filled the car up with offroad diesel. Drove it about 100 miles and it runs flawlessly again. I will top off at a truck stop later on this week and add LiquiMoly diesel treatment from now on.

Thankfully when I plugged my laptop in my injectors are all showing even pressure across the board. I suspected they would not be bad because all 6 were changed before I purchased the vehicle. I bout it with roughly 90k and I'm at 122k now. Since then I have changed the oil 4 times and I change the fuel filter every oil change. I also fill the new fuel filter with LiquiMoly diesel purge prior to installation and bleed the system.

Thanks for all the responses guys, and if you're in the midwest, stay safe during the polar vortex this week!

12-10-2016, 08:30 PM	#1
EvanTheBruce Private First Class 57 Rep 104 Posts Drives: BMW 335d Stage 2+ Join Date: Oct 2016 Location: Lowell, IN iTrader: (0)	335d loss of power, roughly idle during drive home from work It's about 22* F out right now. On my way home from work I was cruising at about 80mph the whole way, as soon as I got off on my exit the car started to lose power and would not shift out of gear until about 3500 rpm. I also noticed an unusual amount of noise coming from the engine. I'm assuming I have a fuel gelling issue? Or maybe my car has a bad injector? Had it tuned by BPC a month ago, stage 2+ and full delete and an EGR delete. The car isn't throwing an SES light and I don't have my laptop to plug it in. Here's a video of my condition. Any suggestions? Last edited by EvanTheBruce; 12-11-2016 at 10:38 AM..
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12-10-2016, 09:46 PM	#2
JOHNNYBRAVO1 NY BRAVEST 47 Rep 231 Posts Drives: 2010 Monaco blue, 335D Join Date: Mar 2016 Location: NEW YORK, LONG ISLAND iTrader: (0)	That's what mine sounded like before I replaced my injectors
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12-10-2016, 10:02 PM	#3
Torqu3 Major 321 Rep 1,157 Posts Drives: 2011 335d Join Date: Sep 2016 Location: Centralish Texas iTrader: (0)	Yeah, sounds like the injectors might be going bad.
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12-10-2016, 10:08 PM	#4
geost Second Lieutenant 42 Rep 281 Posts Drives: 2011 335d M Sport Join Date: Feb 2014 Location: NorCal iTrader: (1)	Is there any benefit to driving without the plastic engine cover? __________________
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12-11-2016, 05:29 PM	#7
EvanTheBruce Private First Class 57 Rep 104 Posts Drives: BMW 335d Stage 2+ Join Date: Oct 2016 Location: Lowell, IN iTrader: (0)	Update for you guys: As I suspected my issue was caused from fuel jelling. The station I filled up at definitely has summer blend stll in their tanks. I drove the car to a local farmers house and put 2 gallons of kerosene in then filled the car up with offroad diesel. Drove it about 100 miles and it runs flawlessly again. I will top off at a truck stop later on this week and add LiquiMoly diesel treatment from now on. Thankfully when I plugged my laptop in my injectors are all showing even pressure across the board. I suspected they would not be bad because all 6 were changed before I purchased the vehicle. I bout it with roughly 90k and I'm at 122k now. Since then I have changed the oil 4 times and I change the fuel filter every oil change. I also fill the new fuel filter with LiquiMoly diesel purge prior to installation and bleed the system. Thanks for all the responses guys, and if you're in the midwest, stay safe during the polar vortex this week!
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