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BMW 3-Series (E90 E92) Forum
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Help overheated
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| 02-03-2012, 08:36 AM | #1 |
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Second Lieutenant
 
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Help overheated
I just installed the jb4 about a week ago. it ran great then one day I drove it a little hard, engine overheated and I pulled over turned it off then started it right back up. Got home no problems. Turned the jb4 off back to stock mode. An then same thing happened. Overheated after 20 mins.
It\'s 40 degrees out. And I can\'t understand wats going on. Dealer checked it out said the tune could just be sending era codes out but nothing damaged. It\'s not like this happens everyday just once in a blue moon. Anybody have the same problem? Can somebody give me so input on my situation |
| 02-03-2012, 08:44 AM | #2 | |
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Captain
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Drives: 2023 X5M Comp
Join Date: Dec 2010
Location: Oakland NJ
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When I would turn the car off and back on the problem would go away, but once I got back on the gas at all or waited about the same time, limp mode |
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| 02-03-2012, 08:59 AM | #3 |
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Second Lieutenant
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Yellow light came on. Then I wasn't able to accelerate. Red light came on then I pulled over. Got the manual and the icon indicated that engine overheated. Beats me car drives fine. Just the few times this has happened
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| 02-03-2012, 09:32 AM | #6 |
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Second Lieutenant
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Just happened again on my way to work cold start 37 degrees outside drove normal for about 20 mins same result yellow/red light comes on stop started fine again. Passenger side under the hood has some coolant that leaked out. Same thing as last time when I took it to BMW they said a air pocket pushed the coolant out.
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| 02-03-2012, 09:32 AM | #7 | |
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Captain
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Drives: 2023 X5M Comp
Join Date: Dec 2010
Location: Oakland NJ
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2013 535ix
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| 02-03-2012, 09:54 AM | #8 |
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Brigadier General
 
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Water pump and thermostat. Stop driving the car.
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2021 M2 Comp Sunset Orange |Black with orange Stitching Dakota Leather|Executive Pkg|DCT
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| 02-03-2012, 09:56 AM | #9 | |
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Private First Class
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Sounds like your waterpump needs to be replaced.
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| 02-03-2012, 10:01 AM | #10 | |
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Colonel
 
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If no codes are being thrown use Chevron Techron fuel injector cleaner (concentrate). It solves rpm fluctuating upon cold start-up. Also, for most BMW problems start off by scanning your car with the Peake Research Tool. It contains the actual BMW codes. If you want to register a newly installed battery for free (just buy a $10 cable) and google/download BMWLogger
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| 02-03-2012, 10:14 AM | #11 |
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Second Lieutenant
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Looks like my radiator fan isn't working right either turns on but seems to spin slow an then it stops and looks like it has a hard time spinning again. On for about 30 sec and then stops and then on again happens over an over. Does this seem normal?
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| 02-03-2012, 10:20 AM | #12 | |
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Lieutenant Colonel
 
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Koni special active red, eibach pro-kit springs, Remus exhaust, stage 3 intake manifold,Stage 2 AA tune, BMW Short shift kit. Silicon intake pipe. M3 control arms front, M3 rear. ECS trailing arm with whiteline bushings. Purple powerflex subframe bushings. Yellow power flex upper shock mounts. Single mass flywheel OE weight.
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