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View Full Version : Bad start ups, when colder then -10C


BMW_M52_M20
01-08-2004, 01:11 AM
These past coupe of days, my e30 is really hard to get started when the car is cold. It takes about 4 or five turns of the key to crank it over......

I have replaced:

Fuel lines
Fuel Pump
New Gas tank
New Spark Plugs
New Distribution Cap
New Rotor

What else could it be? Dirty injectors?
Jay

WhadUpp
01-08-2004, 01:35 AM
battery?:confused: just a guess

Lennon
01-08-2004, 01:49 AM
How many kms on the car, man?

BMW_M52_M20
01-08-2004, 02:04 AM
No, it is not the battery, it is less then 6 months old, and plenty of cranking power......

Lennon: The car has 215,000kms.........
Jay

SebSter
01-08-2004, 04:13 AM
its just cuz of the weather.. probably shouldnt worry about it too much unless it starts to happen during regular temperatures too

BMW_M52_M20
01-08-2004, 11:56 AM
Yeah, thats what I figured, it only does it when it is really really cold out.
Anyone think I should add some STP Fuel Injector cleaner or is that stuff bullsh*t?
Jay

Jon@Bimmersport
01-09-2004, 04:50 AM
i used penzoil and i didnt feel a difference..paid $10 for 2 bottles so meh..it might do SOME good.

Slowered318
01-09-2004, 05:01 AM
Originally posted by BMW_M52_M20
Yeah, thats what I figured, it only does it when it is really really cold out.
Anyone think I should add some STP Fuel Injector cleaner or is that stuff bullsh*t?
Jay

That wont really help.. and it can burn your injectors and or O2 sensor.. when it's cold like this, a fuel line antifreeze can help the cold starts.

BMW_M52_M20
01-09-2004, 05:08 PM
Originally posted by Slowered318
That wont really help.. and it can burn your injectors and or O2 sensor.. when it's cold like this, a fuel line antifreeze can help the cold starts.

Good idea, I couldn't even start the car this morning. Drained the battery, going to give the antifreeze a shot.
Jay

crazyvadim
01-11-2004, 12:00 AM
Try using thinner oil...

BMW_M52_M20
01-11-2004, 12:10 AM
I do, 20W50 in the summer and 5W30 in the winter.........
Jay

crazyvadim
01-11-2004, 12:15 AM
Originally posted by BMW_M52_M20
I do, 20W50 in the summer and 5W30 in the winter.........
Jay

5w30 sounds good,i guess its the injectors or the fuel pump or if its really really that cold then fuel viscosity is very thick.

WhadUpp
01-11-2004, 02:00 AM
Another thing, its always recommended that you always have at least half a tank of gas so your fuel lines don't freeze under extreme low temperatures.

BMW_M52_M20
01-11-2004, 05:46 AM
It has to be th injectors I have replaced everything else that has to do with starting problems.
I bought a block heater for the car which I think should help aswell.
Jay

Jammasterj
01-20-2004, 02:42 AM
Buy a can of Quick Start... LOL

better yet ill give you the rest of mine

and use a stick to hold the air filter open

Jammasterj
01-20-2004, 02:46 AM
i don't think the fuel is frozen, otherwise you would have problems in the e36 would you not?

i say just give the injector cleaner a try when it warms up a bit..

jello_g
01-24-2004, 09:19 AM
Stay away from Shell gas if by chance you are using it. I routinely use Sunoco or PetroCan, but a few weeks ago I got lazy and filled up with Shell because I was too lazy to drive a block further to another gas station. That evening temperatures dipped below -20 celsius and the gas line froze. (Dumped a bottle of gas line anti-freeze and waited a few hours for it to disperse within the gas tank - problem solved. Hard lesson learned - never going to use Shell in the winter again!)

328power
01-25-2004, 06:34 PM
Originally posted by BMW_M52_M20
These past coupe of days, my e30 is really hard to get started when the car is cold. It takes about 4 or five turns of the key to crank it over......

I have replaced:

Fuel lines
Fuel Pump
New Gas tank
New Spark Plugs
New Distribution Cap
New Rotor

What else could it be? Dirty injectors?
Jay

Ouch i know your pain.... i did the same with my car + 3 way valve + bunch of other stuff.....I had brought it to CHuks Auto 3-4 times and everytime they said they fixed it and the next mornign when the engine was cold i would take 3-4 turns to start..... After spending 4k on my car in repairs in a year i sold it....Best bet would bring it to the dealer...Somethign i shoulda done from the begining

***Mine did it all the time though even in the summer...all it took was 5-6 hours off and it wouldnt crank

NickP
01-26-2004, 09:22 PM
Temp sensor (blue one, not the brown one), operation of the cold start injector...

IVAN
01-26-2004, 10:32 PM
I jus picked up winter beater E 30 325 4 door with 285 000km....It was not in use for 3 months....We just put battery back in the place and it started like day one...But only one owner...It is gonna be fun on Thursday when i smack it on DVP just to see how fast it can go..

328power
01-27-2004, 12:58 AM
Originally posted by IVAN
I jus picked up winter beater E 30 325 4 door with 285 000km....It was not in use for 3 months....We just put battery back in the place and it started like day one...But only one owner...It is gonna be fun on Thursday when i smack it on DVP just to see how fast it can go..

If you dont mind telling how much did you pay ? I wouldnt mind getting one until i can afford an e46

IVAN
01-27-2004, 01:15 AM
It has Original colour and interior is like brand new ,I can not belif for 285 000km how it is well kept . Pure stock it does not
even
have after market cd it has bavaria factory radio and tape...
Certified and Emmesion tested $3200 but because of mileage I sealed a deal....Till now I used to drive my dads 1995 525i but he came back from Yugoos so he needs it.

IVAN
01-27-2004, 01:21 AM
I ll post some pics as soon as I insure it cuz I get get in Sh... for driving it to my place w/o Insurance....

Gato
12-07-2008, 04:37 PM
Ouch i know your pain.... i did the same with my car + 3 way valve + bunch of other stuff.....I had brought it to CHuks Auto 3-4 times and everytime they said they fixed it and the next mornign when the engine was cold i would take 3-4 turns to start..... After spending 4k on my car in repairs in a year i sold it....Best bet would bring it to the dealer...Somethign i shoulda done from the begining

***Mine did it all the time though even in the summer...all it took was 5-6 hours off and it wouldnt crank

This most likely was neither of your problems but there is a known problem with BMW ICV valves wearing out (usually after 100k miles) and causing hard starts. Before you buy a new one for $100 get a friend who will let you swap his for a day and see if it makes a difference.

El Gato Liso
12-07-2008, 04:38 PM
for the record, i didnt do it.

SamE30e
12-07-2008, 05:10 PM
My car does the same. I just live with it.

richie_s999
12-07-2008, 05:31 PM
Try some sythetic oil, even when its cold out 5w30 can get thick if its regular oil. What kinda shape are you plug wires in?? The rubber could be absorbing moisture, not going to notice it when its warm, but when they get cold fom not running it can affect the starting.

everlast
12-07-2008, 06:19 PM
Guys, this thread was from FOUR YEARS AGO. READ THE DATE before posting.

:D

richie_s999
12-07-2008, 06:22 PM
LOL good call LOL

DR.ZED
12-07-2008, 07:45 PM
I was having the same issue and found a few things.

First was my cold start injector coolant sensor plug wasn't on all the way so my cold start injector didn't fire.

Second was that I had a faulty high idle coolant switch. Its the one with the yellow head below the connectors. This runs the idle at 1000 RPM when the coolant temp is below 45C.

My 325e with well over 300,000 kms starts when its cold at about 3 cranks.

Robb
12-07-2008, 07:48 PM
My 1990 Civic Si starts no problemo.. Honda FTW. :P

slimjim
12-08-2008, 12:20 AM
my e30 starts no problem, but when it gets really cold my gears grind :(

richie_s999
12-08-2008, 12:47 AM
change your tranny fluid to synthetic!!!!!!

manual no tag - 75w90
red tag on manual housing - transmission fluid!!

DR.ZED
12-08-2008, 05:30 PM
My 1990 Civic Si starts no problemo.. Honda FTW. :P

So does my diesel Jetta.

Plus it gets 1050 kms from a 52L tank 75% city and 1300 per tank 100% highway.

... and it has leather, and 200 ft. lbs of tq.

I win! :p

propr'one
12-08-2008, 06:27 PM
i also love how nick posted the correct answer, and everyone just ignored it.

DR.ZED
12-08-2008, 07:07 PM
Temp sensor (blue one, not the brown one), operation of the cold start injector...

On my 1985 325e the cold start injector coolant temp sensor is brown. Its angled toward the rad.

richie_s999
12-09-2008, 10:27 AM
i also love how nick posted the correct answer, and everyone just ignored it.

I may be banned shortly