U.S. CitiesCity-Data Forum Index
Go Back   City-Data Forum > General Forums > Automotive
 [Register]
Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
View detailed profile (Advanced) or search
site with Google Custom Search

Search Forums  (Advanced)
Reply Start New Thread
 
Old 01-18-2012, 09:38 PM
 
Location: Perry, UT
601 posts, read 1,819,929 times
Reputation: 375

Advertisements

Since today my wife's 2002 Saturn SL1 4 cyl has the following problem:

Missfires while trying to start when cold and only starts with lots of gas. Smells gas then but runs great and idles great.

Needs a bit more oil than usual but am not sure there is gas in the oil. Though so at first. (smell)

What could be wrong?
Rate this post positively Reply With Quote Quick reply to this message

 
Old 01-19-2012, 04:45 PM
 
Location: Brawndo-Thirst-Mutilator-Nation
20,327 posts, read 21,164,920 times
Reputation: 17434
If it is only cold weather starting, it could be a problem with the battery.

When batteries get cold, it is a lot harder for electrons to flow through the chemical structures of the battery. So you may get the car started.....but, it is taking longer due to the fact that your engine is not reaching an optimal cranking speed for starting.

The charging system should be ok in cold weather, as long as it is not too cold.

Gas is real rich upon starting, this compounds the problem.


Maybe invest in a car battery cover.
Rate this post positively Reply With Quote Quick reply to this message
 
Old 01-19-2012, 05:02 PM
 
Location: New Jersey
2,715 posts, read 10,975,441 times
Reputation: 1420
Ditto. Also replace spark plugs if not done in a while.
Rate this post positively Reply With Quote Quick reply to this message
 
Old 01-21-2012, 12:39 AM
 
Location: Perry, UT
601 posts, read 1,819,929 times
Reputation: 375
Checked the battery and sparks, all fine.

Will go have the car checked next week.
Rate this post positively Reply With Quote Quick reply to this message
 
Old 01-21-2012, 09:09 AM
 
Location: Victoria TX
42,661 posts, read 81,665,080 times
Reputation: 36443
Even if the battery is very weak, the car should run fine once it has started. Not a battery issue AFTER the car starts, which seems to be the issue described.

How cold does it need to be for this to happen? If the engine is misfiring, there is fuel being injected which is not being burned, resulting the gasoline smell. A can of injector cleaner in the gas tank would be the first and cheapest diagnostic. It could be something as simple as a cracked porcelain insulation on a spark plug, which when cold, would open a wider gap and allow the spark to leak through the plug walls. Or maybe, on a 10-year old car, a new plug wiring harness is needed, with spark loss through degraded insulation on your spark plug wires.
Rate this post positively Reply With Quote Quick reply to this message
 
Old 01-21-2012, 09:31 AM
 
Location: Northern MN
3,869 posts, read 14,435,568 times
Reputation: 3606
It may not be the case with this problem but
"Even if the battery is very weak, the car should run fine once it has started"

On these new vehicles with a ecm, it may need to be over a set minimum voltage to start. It may crank over but it has to have enough voltage to fire off.

Meany problems can come from a weak battery.
Rate this post positively Reply With Quote Quick reply to this message
 
Old 01-21-2012, 10:11 AM
 
373 posts, read 629,161 times
Reputation: 192
Here is an old school trick of the trade when you have a cold start problem. Squirt just a LITTLE starting fluid into the air intake. You can start it plenty of times with just one can of the stuff.
Rate this post positively Reply With Quote Quick reply to this message
 
Old 01-21-2012, 10:17 AM
 
Location: Northern MN
3,869 posts, read 14,435,568 times
Reputation: 3606
Quote:
Originally Posted by Falconman View Post
Here is an old school trick of the trade when you have a cold start problem. Squirt just a LITTLE starting fluid into the air intake. You can start it plenty of times with just one can of the stuff.
Just don't use it on a diesel with a grid heater.
It will ignite it in the intake before it gets to the cylinders.

if, if your going to try it, remove the air filter and have someone crank it then give it a little shot of starting fluid right into the intake plenum.

But you'll still need good battery (s).
Rate this post positively Reply With Quote Quick reply to this message
 
Old 01-21-2012, 12:45 PM
 
Location: Victoria TX
42,661 posts, read 81,665,080 times
Reputation: 36443
Quote:
Originally Posted by snofarmer View Post

On these new vehicles with a ecm, it may need to be over a set minimum voltage to start. It may crank over but it has to have enough voltage to fire off.
.
But that would be an all-or-nothing threshold. It would either run or not run. Like digital TV reception: Perfect or black. The OP is getting snow.
Rate this post positively Reply With Quote Quick reply to this message
 
Old 01-21-2012, 01:01 PM
 
Location: Not far from Fairbanks, AK
18,861 posts, read 33,222,880 times
Reputation: 14892
Probably a problem relating to airflow? The cold air coming into the motor should be restricted on cold starts, much like a choke does for a carburetor.
Rate this post positively Reply With Quote Quick reply to this message
Please register to post and access all features of our very popular forum. It is free and quick. Over $68,000 in prizes has already been given out to active posters on our forum. Additional giveaways are planned.

Detailed information about all U.S. cities, counties, and zip codes on our site: City-data.com.


Reply
Please update this thread with any new information or opinions. This open thread is still read by thousands of people, so we encourage all additional points of view.

Quick Reply
Message:

Over $104,000 in prizes was already given out to active posters on our forum and additional giveaways are planned!

Go Back   City-Data Forum > General Forums > Automotive

All times are GMT -6.

© 2005-2022, Advameg, Inc. · Please obey Forum Rules · Terms of Use and Privacy Policy · Bug Bounty

City-Data.com - Contact Us - Archive 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 - Top