car not same when cold

valente · #1 11-27-2009, 03:13 PM

ive been haveing this issue for the past few days now.it seems that when the weather or the temperture hits below 35 degrees,the car doesnt run the same,if i give it gas it takes a while to get up to speed.seems like it needs to warm up till it starts running fine.i try to warm the car for about 10 to 15 minutes before i moveit.but that dont help,it only helps when the car has been driven for a couple of minutes.then it drives fine.any idea.thank you

BNaylor · #2 11-28-2009, 12:36 AM

It would help to post the year, model and engine since the throttle control systems vary.

valente · #3 11-28-2009, 07:59 AM

sorry about that,i was thinking about it while i was driving to work. its a 2005 grand prix gtp i think the motor is a 3.8.

tblake · #4 11-28-2009, 06:09 PM

Interesting.....

Even after 10-15 minutes of running the car is not running right?

Have you cleaned the throttle body yet? I know there is a TSB out there about drivability issues associated with the 3800 drive by wire systems. The TSB recommends cleaning the throttle plates.

Make sure you use t-body cleaner, and if you remove it off the supercharger, make sure to install a new gasket.

valente · #5 11-29-2009, 08:14 AM

tell you the truth i havent done anything to the car other than change the oil,spark plugs and airfilter.ill clean the throttle body on my day off.
the car has 65000 miles on it,is there other things that i should replace or clean to keep it running good.thanks

tblake · #6 11-29-2009, 10:46 AM

When the car is not running right, what does the temp guage say? Does it work?

valente · #7 11-29-2009, 02:48 PM

The temp guage works fine.the car has been running great for the past 4 winters,until now and it really hasnt got cold yet.maybe it went below 35 once or twice,the first time, thats when i first noticed it.the other thing ive done was to flush the heater core.other than that,the car has been good to me

tblake · #8 11-30-2009, 10:43 AM

When it is cold out, does the tempurature guage reach 195 degrees?

valente · #9 12-01-2009, 08:14 PM

when it starts getting warm the temperature gauge goes a little past the half mark,and then it drops back to just balow the half mark and it stays there for the rest of the drive.sorry for the late reply

tblake · #10 12-02-2009, 08:23 PM

Sounds normal to me. Are you still having issues? Have you cleand the throttle body? What brand gas are you using?

jfkenigma · #11 12-03-2009, 12:35 AM

These cars do not need spark plugs replacement till 1000,000 miles and the issue that you are having is not gas but a "cts" problem (coolant temperature sensor) that's a common problem on this cars

valente · #12 12-03-2009, 07:55 AM

Quote:

Originally Posted by tblake

Sounds normal to me. Are you still having issues? Have you cleand the throttle body? What brand gas are you using?

havent cleaned the throttle body yet,will do that on the weekend,i work nights 12 hours a night,and this weekend im off,and about the gas i use premium unleaded.thank you

valente · #13 12-03-2009, 08:01 AM

Quote:

Originally Posted by jfkenigma

These cars do not need spark plugs replacement till 1000,000 miles and the issue that you are having is not gas but a "cts" problem (coolant temperature sensor) that's a common problem on this cars

thats nice to know about the spark plugs,thanks
and about the "cts" i will keep this in mind.thanks again

tblake · #14 12-03-2009, 06:01 PM

Where is your premium unleaded coming from? Holiday? BP? Kwik Trip? Cenex?

I try to only run 91 or better Top Tier gas in my GTP

http://www.toptiergas.com/

valente · #15 12-04-2009, 07:52 AM

Quote:

Originally Posted by tblake

Where is your premium unleaded coming from? Holiday? BP? Kwik Trip? Cenex?

I try to only run 91 or better Top Tier gas in my GTP

http://www.toptiergas.com/

fleet farm,been fueling the car there since i got it

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