318ti.org forum

Go Back   318ti.org forum > Technical, Maintenance and Modifications > Engine

Notices

Engine Tuneups, chips, wires, spark plugs.

.
» Recent Threads
1999 M-Sport For Sale
12-31-2023 05:10 PM
Last post by Coop540iT
03-23-2024 06:39 PM
1 Replies, 103,029 Views
Once again 318ti owner...
03-20-2024 12:39 PM
Last post by two30grain
03-22-2024 02:04 PM
1 Replies, 66,069 Views
What brakes do I...
03-20-2024 03:27 PM
Last post by huirtera
03-20-2024 03:27 PM
0 Replies, 63,284 Views
Reply Share/Bookmark
 
Thread Tools Display Modes
Old 09-15-2009, 08:32 PM   #16
cooljess76
NOBODY F's with the Jesus
 
cooljess76's Avatar
 
Join Date: Oct 2006
Location: Ventura California
Posts: 7,824
iTrader: (6)
Default

Low speed relay. IIRC it's the same part# as the high speed relay, swap them out and see if the problem switches.
cooljess76 is offline   Reply With Quote
Old 09-15-2009, 08:37 PM   #17
Bills86e
Senior Member
 
Join Date: Apr 2009
Location: TampaBay, Florida
Posts: 104
iTrader: (0)
Default

Fuse #41, a 30amp, supposed to be the auxilliary low speed
fan has no fuse in that spot, nor is a female acceptance
resepticle plug for a male fuse.? In post 5 did you mean Switch?
I only see one fan, or is it a dual speed fan? If so, would one speed be bad? Coolant level is holding, Want to fix this fan
issue, as worrying me to drive it and suddenly O-H !
Bills86e is offline   Reply With Quote
Old 09-15-2009, 08:49 PM   #18
cooljess76
NOBODY F's with the Jesus
 
cooljess76's Avatar
 
Join Date: Oct 2006
Location: Ventura California
Posts: 7,824
iTrader: (6)
Default

Yeah it's just one fan with two speeds. Yeah I meant switch, but I don't know where it's located.
cooljess76 is offline   Reply With Quote
Old 09-15-2009, 08:55 PM   #19
Bills86e
Senior Member
 
Join Date: Apr 2009
Location: TampaBay, Florida
Posts: 104
iTrader: (0)
Default

Thank you for the GREAT HELP! I plan on babying out any
leftover bubbles, replaceing the fan, crossing fingers.
Bills86e is offline   Reply With Quote
Old 09-15-2009, 09:04 PM   #20
FMD
Senior Member
 
Join Date: May 2005
Location: Seattle
Posts: 181
iTrader: (0)
Default

Likely air in the system as suggested earlier, the car doesn't even really need a fan unless you're idling or sitting in traffic.
FMD is offline   Reply With Quote
Old 09-15-2009, 10:48 PM   #21
cooljess76
NOBODY F's with the Jesus
 
cooljess76's Avatar
 
Join Date: Oct 2006
Location: Ventura California
Posts: 7,824
iTrader: (6)
Default

Hopefully another bleeding will remedy the problem. If you do have airlock, coolant won't circulate and the temp sensors/switch won't get a proper reading. If later you still have cooling issues, I have an aux fan for sale:
http://www.318ti.org/forum/showthread.php?t=27791

Keep an eye on that temperature gauge, if it makes it to the red it's usually too late! Best of luck to ya, keep us posted
cooljess76 is offline   Reply With Quote
Old 09-16-2009, 04:17 PM   #22
Bills86e
Senior Member
 
Join Date: Apr 2009
Location: TampaBay, Florida
Posts: 104
iTrader: (0)
Default

#14, No notice of those yet, You guys brought attention to
this air/bleed issue, These things are REALLY temperamental.
Wife says " Just can't put in water?" TEE HEE, Nope, its a
real luxury to know how its done, HA HA!!! Took fan out,
low motor speed don't work. I should be able to find one,
lots of bimms in U-pull-it boneyard. A clutch fan there is $9.99.
Maybe one will work, and I can keep the A/C electic fan too.
Since the high works! Friday is 1/2 off day! $1 to get in.
Bills86e is offline   Reply With Quote
Old 09-25-2009, 04:48 PM   #23
Bills86e
Senior Member
 
Join Date: Apr 2009
Location: TampaBay, Florida
Posts: 104
iTrader: (0)
Default

Quote:
Originally Posted by cooljess76 View Post
Low speed fan is triggered by temp sensor, high speed triggered by A/C. How did you go about bleeding the system?
I will replace temp sensor. Is that on the rad? I see one on the block too.
Bills86e is offline   Reply With Quote
Old 09-26-2009, 07:28 PM   #24
Bills86e
Senior Member
 
Join Date: Apr 2009
Location: TampaBay, Florida
Posts: 104
iTrader: (0)
Default

All of the aforesaid posted problems did occur.



UPDATE: The Fix, My problem is Solved!
I replaced the engine coolant temperature sensor
My low speed fan now works & cycles correctly
If I now jumper the brown and bleck with green at radiator
coolant switch I gave signal voltage

Thanks to all who helped, Especially COOLJESS76 (he pointed
out the trigger). I am so glad I don't need to replace ECM/DME

This is the BEST FORUM ever. I learned how to understand FSM with the help of all...................I...Fixed .... a...BMW 318ti
Bills86e is offline   Reply With Quote
Old 09-26-2009, 08:29 PM   #25
Bills86e
Senior Member
 
Join Date: Apr 2009
Location: TampaBay, Florida
Posts: 104
iTrader: (0)
Default

DAMN!!!!! Took for a drive and REDLINED AGAIN!
No air, only coolant at bleed screw.
I'll let cool then recheck.
Fan works high & low.
Bills86e is offline   Reply With Quote
Old 09-27-2009, 03:21 AM   #26
rtbmw318
Junior Member
 
Join Date: Nov 2008
Location: california
Posts: 9
iTrader: (0)
Default

I thought I had the similar problem, but I was able to fix mines yesterday. I thought my problem was the head gasket after replacing the thermostat and waterpump

My 98 318ti overheated in the I-10, had it towed turned out the water pump bearings broke then cause the belts to snapped.

Replaced the waterpump
here the pic of the old one background car is a 325i


Bought new belts then found out the Pulley on the top left near the Alternator Pulley came off don't know why. So I have to order a new pulley

Got everything fixed up then the coolant won't circulate, since the heater was not working, thermostat was the problem. Remove everything turned out the thermostat was broken as well.

Got everything fixed and up and ready to go turned out the plastic radiator decides to break with all the heat. Decided to replace all the hoses.

Bought a radiator replacement. Fixed everything up the coolant circulate, heater works, and everything is up and running

Parts I used. total is $514 in cost, but everything in the cooling system is up and working again.

Radiator - $165
Water Pump - $70
Radiator Hoses - $60
Thermostat with housing gasket - $ 79
Coolant - $20
Engine Belts x2 - $60
Pulley - $35
Pulley Spacer - $15
Pulley Bolt and Cover - $10
rtbmw318 is offline   Reply With Quote
Old 09-28-2009, 05:48 AM   #27
xxxJohnBoyxxx
Senior Member
 
Join Date: Dec 2007
Location: Gulfport, Florida
Posts: 3,208
iTrader: (1)
Default

Quote:
Originally Posted by Bills86e View Post
DAMN!!!!! Took for a drive and REDLINED AGAIN!
No air, only coolant at bleed screw.
I'll let cool then recheck.
Fan works high & low.
Hate to ask a dumb question but is the car really overheating? is it hot, hot or maybe the gauge sensor is going bad and has a short in it causing the gauge to jump to redline.


Does the gauge creep over to redline or move over there fast. Is it possible the new t-stat is pinned in the closed position?
xxxJohnBoyxxx is offline   Reply With Quote
Old 09-28-2009, 01:26 PM   #28
Bills86e
Senior Member
 
Join Date: Apr 2009
Location: TampaBay, Florida
Posts: 104
iTrader: (0)
Default

I had the heater on......YEAH.. it was HOT. I discovered last night I need
to Burp it more as I found air at bleed after cooldown, and also now the
switch quit too. I can jumper that and the low works, so I am going to find
another and get it in. These engines just won't circulate if an air bubble is
in there anywhere. Not anything like a normal GM or Ford! BURP!
Bills86e is offline   Reply With Quote
Old 09-28-2009, 01:48 PM   #29
xxxJohnBoyxxx
Senior Member
 
Join Date: Dec 2007
Location: Gulfport, Florida
Posts: 3,208
iTrader: (1)
Default

Quote:
Originally Posted by Bills86e View Post
I had the heater on......YEAH.. it was HOT. I discovered last night I need
to Burp it more as I found air at bleed after cooldown, and also now the
switch quit too. I can jumper that and the low works, so I am going to find
another and get it in. These engines just won't circulate if an air bubble is
in there anywhere. Not anything like a normal GM or Ford! BURP!
If you burped it good and it still is getting air in there I'm going to have to say the thing that no one wants to say.

Bad head gasket. Why you ask. Well when they go bad they can leak exhaust in the coolant which would cause your air and also cause the coolant level to go below the fan sensor which will overheat it quick with the motor pumping exhaust in the cooling system it gets hot very fast. When I said hot I didn't mean heater I meant the eactual motor temp taken with a infraded temp reader on the head were the sensor is mounted or at the coolant sensor.

I really hope I'm jumping the gun on the head gasket and want to be proved wrong but I've read the whole thread and it looks like you did everything right so far and still have the same issue...
xxxJohnBoyxxx is offline   Reply With Quote
Old 09-28-2009, 02:32 PM   #30
Bills86e
Senior Member
 
Join Date: Apr 2009
Location: TampaBay, Florida
Posts: 104
iTrader: (0)
Default

I have not seen any loss of coolant yet. After I get the temp switch replaced so the low fan cycles, and do the re-burp proceedure, and if have
continued problems, What is the test for blown HG? Is it the Cooling System
Pressure Test attached to the radiator at cap/tank on page 170-3? (Bently)
I kill engine at RED, this is my 2nd engine.
Bills86e is offline   Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Overheating aznlonewolf135 Engine 5 12-24-2008 12:43 AM
Overheating AGAIN!!! weezer Engine 10 06-21-2007 11:09 PM
My car keeps overheating :( denissef HVAC 5 05-08-2006 05:50 PM
overheating? worditsmenick Engine 13 11-11-2005 04:19 AM
Overheating yogaji Engine 7 01-24-2005 03:16 PM


All times are GMT +1. The time now is 05:53 AM.


.
Powered by site supporters
vBulletin Version 3.8.8
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©1999 - 2024, 318ti.org
© vBadvanced CMPS v3.2.2
[page compression: 115.29 k/137.87 k (16.38%)]

318ti.org does not warrant or assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information or products discussed.