Jump to content
Ultimate Subaru Message Board

Recommended Posts

My wife's '95 Legacy 2.2L has a cold start problem.

 

After sitting overnight in sub freezing temps it starts

really hard, and when it does start it chugs a bit.

Then it's fine.

 

When the temps are freezing or above it's not an

issue.

 

The car has new plugs, new plug wires, and we just

put a new fuel filter on.

 

What do you think????

Share this post


Link to post
Share on other sites

hows the battery ,my 95 legacy did the same thing until i changed the battery mine was 7 years old , may or may not be the problem , autozone will check it for free,here is another thing since you in the deep freeze put a block heater on it ,

Edited by 86subaru

Share this post


Link to post
Share on other sites

Have run into fuel problems on cold start several times. Will start hard and then die, after a couple of times will start and run ok, discovered that the poor volatility of some gasolines has a major effect on cold starts, clears up due to cylinder temperature coming up and excess fuel in cylinders from cranking and stalling. If this is the case, usually is easily cured by switching brand of fuel, or by adding a high quality fuel additive, such as lucas.

Share this post


Link to post
Share on other sites

have you ever noticed the rad fans running at

a strange time?

 

If so the FI coolant thermosensor wants changed.

Share this post


Link to post
Share on other sites

Haven't noticed any rad fan issues.

 

I have wondered about there being a temperature

sensor that would tell the computer when to apply

additional fuel. Would that be the coolant temp sensor?

 

We've done the fuel thing, it's have a few tanks of fuel

through it since this showed up. Added Heat and some

other additive/inj cleaner.

Share this post


Link to post
Share on other sites

Just thought I'd throw this in.

 

What weight oil are you running? On my last oil change some *dojo* put in heavier oil than I run (let's just say it wasn't 5/30) and Dragon really didn't like starting in 14 degree weather. I knew my battery needed replacement, but even with a fully-charged fresh battery she didn't want to turn over and stay that way without a tap on the gas pedal (more than one, actually). She ran as rough as a washboard until she was up to full operating temp. Once she was hot she was running/starting as usual. Less than 1 year on NGK's, 60/40 antifreeze, gas with Heet and topped up with Premium. Couldn't figure out the cause until I called the dealer who'd done the oil change while I was on the road. Yes, they'd used heavier oil than I'd requested.

 

Replaced oil with lighter, usual weight. No problems now.

 

I wouldn't want to run with thicker oil in the c-c-cold weather we've all been having. If you do track this down to the oil I'd say a block heater is in your future if you're already running 5/30. Wish I had one this year! Maybe even a battery warmer.

 

So does everyone else in Seattle; none to be had. All backordered...:(

Share this post


Link to post
Share on other sites
My wife's '95 Legacy 2.2L has a cold start problem.

 

After sitting overnight in sub freezing temps it starts

really hard, and when it does start it chugs a bit.

Then it's fine.

 

When the temps are freezing or above it's not an

issue.

 

The car has new plugs, new plug wires, and we just

put a new fuel filter on.

 

What do you think????

 

Could be the coolant temp sensor, they act like this when they go bad.

Share this post


Link to post
Share on other sites
I have wondered about there being a temperature

sensor that would tell the computer when to apply

additional fuel. Would that be the coolant temp sensor?

.

Thats correct sir,

If you want to test it

the Factory Service Manual

shows

 

for 68 deg F the resistance should be 2.0 - 3.0 kilo OHMS

for 176 deg F the resistance should be 0.3 - 0.4 kilo OHMS

 

Here is a procedure for changing it with some good pictures

http://www.lovehorsepower.com/SubaruDocs/CoolantTempSensor.html

Share this post


Link to post
Share on other sites
l I'd say a block heater is in your future if you're already running 5/30. Wish I had one this year! Maybe even a battery warmer.

 

So does everyone else in Seattle; none to be had. All backordered...:(

 

Growing up in Spokane/N. ID, and now living in Colorado, it seems kind of strange that anyone in Seattle would even need a block heater.... In Colorado, I only have one on the diesel truck, none of the gas vehicles, and they all start fine in single digit temps all winter.

 

Of course... I'm sure all the people in Minnesota and Alaska are laughing at me thinking that Colorado or Idaho is cold .... Single digits... you mean positive numbers? :lol:

Share this post


Link to post
Share on other sites

I know i'm wierd but all my vehicles have block heaters. Best $35 you can spend if it gets cold out. Not only is it nice to have effortless starting and instant heat but it's good for the motor plain and simple. Why more folks don't use them is a mystery to me.:-\

Share this post


Link to post
Share on other sites
Could be the coolant temp sensor, they act like this when they go bad.

 

 

Give that man a lollypop.

 

Coolant Temp Sensor.

 

Wont throw a code because the car has to be running to throw a code, and once the car starts, its no longer an issue. I bet the CTS has a prblem at the bottm end (cold) of the resistance range.

 

nipper

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×