Recent quirks my GT has developed
05-31-2012, 07:52 AM
#1
Thread Starter
Join Date: Mar 2008
Posts: 36
Recent quirks my GT has developed
Hi all,
Over the last couple weeks my car (2009 GT stick)has developed a couple of quirks.
1) When I start the engine cold sometimes it seems to hesitate before roaring to life. I'll turn the ignition and it will flip on, but hesitate for maybe a tenth of a second or so before jumping directly to 1500-2000 rpm.
It never used to do that before; it would be a more smooth transition from turning over to roaring to life. It seems to be worse the colder it is outside.
It's fruitless to have someone look at it because by the time I get it to a mechanic the car is warmed up and doesn't have the issue anymore.
2) When using the auto-up feature on my passenger side window it will go up maybe 3-4 inches and then come back down. If I press it again it works just fine and rolls all the way up. It's almost like it thinks something is in the way so it backs off much like a garage door would. But I checked, there isn't anything.
Thoughts? Only thing I can think of for #1 is maybe my battery isn't as strong as it used to be. However, I just had my routine maintenance a few weeks ago and they checked that.
Over the last couple weeks my car (2009 GT stick)has developed a couple of quirks.
1) When I start the engine cold sometimes it seems to hesitate before roaring to life. I'll turn the ignition and it will flip on, but hesitate for maybe a tenth of a second or so before jumping directly to 1500-2000 rpm.
It never used to do that before; it would be a more smooth transition from turning over to roaring to life. It seems to be worse the colder it is outside.
It's fruitless to have someone look at it because by the time I get it to a mechanic the car is warmed up and doesn't have the issue anymore.
2) When using the auto-up feature on my passenger side window it will go up maybe 3-4 inches and then come back down. If I press it again it works just fine and rolls all the way up. It's almost like it thinks something is in the way so it backs off much like a garage door would. But I checked, there isn't anything.
Thoughts? Only thing I can think of for #1 is maybe my battery isn't as strong as it used to be. However, I just had my routine maintenance a few weeks ago and they checked that.
Last edited by abecker; 05-31-2012 at 07:55 AM.
05-31-2012, 08:27 AM
#2
4th Gear Member
Join Date: Jan 2007
Location: Palm Beach to South Carolina
Posts: 1,567
Hi all,
Over the last couple weeks my car (2009 GT stick)has developed a couple of quirks.
1) When I start the engine cold sometimes it seems to hesitate before roaring to life. I'll turn the ignition and it will flip on, but hesitate for maybe a tenth of a second or so before jumping directly to 1500-2000 rpm.
It never used to do that before; it would be a more smooth transition from turning over to roaring to life. It seems to be worse the colder it is outside.
It's fruitless to have someone look at it because by the time I get it to a mechanic the car is warmed up and doesn't have the issue anymore.
2) When using the auto-up feature on my passenger side window it will go up maybe 3-4 inches and then come back down. If I press it again it works just fine and rolls all the way up. It's almost like it thinks something is in the way so it backs off much like a garage door would. But I checked, there isn't anything.
Thoughts? Only thing I can think of for #1 is maybe my battery isn't as strong as it used to be. However, I just had my routine maintenance a few weeks ago and they checked that.
Over the last couple weeks my car (2009 GT stick)has developed a couple of quirks.
1) When I start the engine cold sometimes it seems to hesitate before roaring to life. I'll turn the ignition and it will flip on, but hesitate for maybe a tenth of a second or so before jumping directly to 1500-2000 rpm.
It never used to do that before; it would be a more smooth transition from turning over to roaring to life. It seems to be worse the colder it is outside.
It's fruitless to have someone look at it because by the time I get it to a mechanic the car is warmed up and doesn't have the issue anymore.
2) When using the auto-up feature on my passenger side window it will go up maybe 3-4 inches and then come back down. If I press it again it works just fine and rolls all the way up. It's almost like it thinks something is in the way so it backs off much like a garage door would. But I checked, there isn't anything.
Thoughts? Only thing I can think of for #1 is maybe my battery isn't as strong as it used to be. However, I just had my routine maintenance a few weeks ago and they checked that.
Regarding #2, I also get this too, but it rarely happens (maybe once a month). So I just hit the switch again and go about my day. I would like to know what others have done to correct this too. Subscribed!
05-31-2012, 08:29 AM
#3
5th Gear Member
Join Date: Jun 2005
Location:
Posts: 3,319
I would suspect the battery.
Have you tried resetting the windows? For each window, hold the button in the down position and hold it a few seconds after it hits bottom, then do the same in the up position. I have to do that with my '06 from time to time, especially if the battery gets low.
I'd have the battery load tested and make sure the alternator is putting out up to snuff.
Have you tried resetting the windows? For each window, hold the button in the down position and hold it a few seconds after it hits bottom, then do the same in the up position. I have to do that with my '06 from time to time, especially if the battery gets low.
I'd have the battery load tested and make sure the alternator is putting out up to snuff.
05-31-2012, 08:48 AM
#4
Thread Starter
Join Date: Mar 2008
Posts: 36
I have done the window limit re-config.
It only happens when the windows is coming up all the way from the bottom. It will stop a couple inches up and then retreat.
The starting anomaly is what concerns me more. Chicago winters aren't always kind to cars in general and the "hesitation" gets worse the colder the car is.
It only happens when the windows is coming up all the way from the bottom. It will stop a couple inches up and then retreat.
The starting anomaly is what concerns me more. Chicago winters aren't always kind to cars in general and the "hesitation" gets worse the colder the car is.
05-31-2012, 10:02 AM
#7
Thread Starter
Join Date: Mar 2008
Posts: 36
So far the suggestions I have are:
1) Check battery (already done)
2) Check alternator
3) Check fuel pump/fuel filter
05-31-2012, 10:26 AM
#8
4th Gear Member
Join Date: Jan 2007
Location: Palm Beach to South Carolina
Posts: 1,567
BTW, my starter turns over as fast as it always had (has a slightly higher pitch to it though), but it is the initial "stumble" that lasts only a second or two after the starter disengages. It actually sounds kinda cool with the cams, but I am sure that it is not good for the car. Other than the first couple of seconds, the car runs perfectly all the way to 6500 RPMs!
Last edited by jdmcbride; 05-31-2012 at 10:35 AM.
05-31-2012, 10:33 AM
#9
4th Gear Member
Join Date: Apr 2009
Location: The Rocket City, AL
Posts: 1,881
05-31-2012, 11:09 AM
#10
1st Gear Member
Join Date: Jun 2011
Location: California
Posts: 65
I agree with D'prived. Maybe the throttle body is dirty. Visit your nearest auto parts store and get a can of CRC Throttle body cleaner, should be no more than $10 or something. I would first check battery. This happened to my car a while back, it ended up being my battery cause I took it into the auto body store to have it tested. If you do unplug the battery for more than 30 min, don't forget to go through the idle re-learn process so your ECU can re learn the idle. Hope that helps.