Help overheated - BMW 3-Series (E90 E92) Forum

qmup508 · 02-03-2012, 09:36 AM

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

KaffineKiller · 02-03-2012, 09:44 AM

Quote:

Originally Posted by qmup508

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

How do you know it overheated? When I drove mine to hard one day on the jb4 I blew 4 fuel injectors...

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

qmup508 · 02-03-2012, 09:59 AM

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

qmup508 · 02-03-2012, 10:07 AM

Man 4 fuel injectors how hard we're u driving ? I'm more of a 0-70 guy

NaTuReB0Y · 02-03-2012, 10:10 AM

Waterpump/thermostat

qmup508 · 02-03-2012, 10:32 AM

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.

KaffineKiller · 02-03-2012, 10:32 AM

Quote:

Originally Posted by qmup508

Man 4 fuel injectors how hard we're u driving ? I'm more of a 0-70 guy

So am I, however that day I was being more of a 60-110 on highway oops

David1 · 02-03-2012, 10:54 AM

Water pump and thermostat. Stop driving the car.

feenin4rich · 02-03-2012, 10:56 AM

Sounds like your waterpump needs to be replaced.

Quote:

Originally Posted by qmup508

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.

Chriztofor · 02-03-2012, 11:01 AM

Quote:

Originally Posted by David1

Water pump and thermostat. Stop driving the car.

This.

qmup508 · 02-03-2012, 11:14 AM

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?

gunnerxq · 02-03-2012, 11:20 AM

Quote:

Originally Posted by qmup508

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?

That's normal, check your coolant level and if I were you I would replace the water pump because its probably on its last legs.

02-03-2012, 09:36 AM	#1
qmup508 Second Lieutenant Drives: 325ci Join Date: Jan 2007 Location: delaware Posts: 205 iTrader: (0)	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
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02-03-2012, 10:10 AM	#5
NaTuReB0Y Powered By 36DD Drives: 2006 E90 Join Date: Jul 2005 Location: Inland Empire Posts: 7,381 iTrader: (12)	Waterpump/thermostat __________________ 2006 E90 330i Jet Black \| 20" WORK VS-XX \| FK452 \| H&R Sport on Koni Yellow \| REMUS QUAD

02-03-2012, 10:54 AM	#8
David1 Colonel Drives: 09 E92 09 X5 Join Date: Mar 2007 Location: City With No Room For Ludicris Speed! Posts: 2,123 iTrader: (0)	Water pump and thermostat. Stop driving the car. __________________ 2009 335i CoupeLBM - Black Dakota/Glacier aluminum-6spd\|Nav\|M-Sport\|Premium\|Logic7\|Heated Seats\|CA\|BMW Performance Suspension & M3 Control Arms\|M3 lip spoiler 2009 X5 3.0-AW-Black Dakota/Bamboo\|Premium\|Tech\|Cold Weather\|Ipod Rear Climate\| 07 335 coupe - Sold 07 X3 - Sold

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02-03-2012, 09:59 AM	#3
qmup508 Second Lieutenant Drives: 325ci Join Date: Jan 2007 Location: delaware Posts: 205 iTrader: (0)	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

02-03-2012, 10:07 AM	#4
qmup508 Second Lieutenant Drives: 325ci Join Date: Jan 2007 Location: delaware Posts: 205 iTrader: (0)	Man 4 fuel injectors how hard we're u driving ? I'm more of a 0-70 guy

02-03-2012, 10:32 AM	#6
qmup508 Second Lieutenant Drives: 325ci Join Date: Jan 2007 Location: delaware Posts: 205 iTrader: (0)	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.

02-03-2012, 11:14 AM	#11
qmup508 Second Lieutenant Drives: 325ci Join Date: Jan 2007 Location: delaware Posts: 205 iTrader: (0)	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?