Stuttering when cold
Thread Starter
1st Gear Member
Joined: Aug 2008
Posts: 57
Stuttering when cold
I've searched through the threads and can't really find anyone having this same problem. Sometimes when leaving work my 06 manual GT will stutter while leaving the parking lot. I let the car warm up for about 30-45 seconds, I then start driving away and get maybe 50-75 feet out of the parking lot and the car will begin stuttering quite a bit for a few seconds. Almost like when you're 15 and learning how to drive a stick and the car lurches & jerks taking off from a start. But in my case I'm already driving away and doing 15 mph or so. It's never done this in the morning only in the late afternoon. I have a Brenspeed tune and it's done this on different tanks of gas.
5th Gear Member
Joined: Aug 2006
Posts: 2,083
From: MD
I usually let mine warm up until the rpms gets to normal operating level. Usually by then the temperature gauge starts to move. I know the manual says you don't have to wait that long, but I think it is good practice. You may need to have a little more patience before moving in cold weather.
4th Gear Member
Joined: Aug 2008
Posts: 1,679
From: Mississippi
I get the same thing smiffer. And my car only has 5k miles on it. Can't believe I have a dirty MAF or throttle body.
My problem arrived with my Bama tune & CAI kit though. Doug thinks its not the tune. Maybe that was just coincidence. The CAI parts are all on tight.
Are you all stock?
My problem arrived with my Bama tune & CAI kit though. Doug thinks its not the tune. Maybe that was just coincidence. The CAI parts are all on tight.
Are you all stock?
2nd Gear Member
Joined: Apr 2008
Posts: 269
From: Illinois
Sometimes my car has had a "hiccup" - it's not as extreme as you describe - in the afternoon when leaving work. It's when I'm in 1st gear in the parking lot @ about 15mph. Maybe I'm loading my engine too soon. It doesn't happen very often, but it seems to be when it's colder out, 30 - 40 degrees, I'll have to pay more attention. I don't recall it happening when it is real cold out, but when it is extreme cold out, I let it idle for a minute and drive a little easier until the engine temp get up. (I have not had the problem in the morning, but I do park in an insulated garage at night.)
Total guess - Maybe humidity is a factor as well as temperature?
Total guess - Maybe humidity is a factor as well as temperature?
5th Gear Member
Joined: Dec 2006
Posts: 4,552
From: Redding, CA
Anybody with a custom tune may have had their "cold based timing table" adjusted within the tune. The purpose of the adjustment is make sure engine is at a good operating temperature before it satrts making real power.
Tuners who do FI cars or cars with built motors will typically put retard timing severly while the motor is cold. This way the block. heads, oil, fluids, bearings etc are all warmed up before you get on it.
If the problem happens only when the car is at it's coolest then I doubt it's a mechanical issue. Any driveability issue with our cars can almost always be traced directly to the tune.
Email Brenspeed and they will fix it.
Tuners who do FI cars or cars with built motors will typically put retard timing severly while the motor is cold. This way the block. heads, oil, fluids, bearings etc are all warmed up before you get on it.
If the problem happens only when the car is at it's coolest then I doubt it's a mechanical issue. Any driveability issue with our cars can almost always be traced directly to the tune.
Email Brenspeed and they will fix it.
2nd Gear Member
Joined: Apr 2008
Posts: 269
From: Illinois
Anybody with a custom tune may have had their "cold based timing table" adjusted within the tune. The purpose of the adjustment is make sure engine is at a good operating temperature before it satrts making real power.
Tuners who do FI cars or cars with built motors will typically put retard timing severly while the motor is cold. This way the block. heads, oil, fluids, bearings etc are all warmed up before you get on it.
If the problem happens only when the car is at it's coolest then I doubt it's a mechanical issue. Any driveability issue with our cars can almost always be traced directly to the tune.
Email Brenspeed and they will fix it.
Tuners who do FI cars or cars with built motors will typically put retard timing severly while the motor is cold. This way the block. heads, oil, fluids, bearings etc are all warmed up before you get on it.
If the problem happens only when the car is at it's coolest then I doubt it's a mechanical issue. Any driveability issue with our cars can almost always be traced directly to the tune.
Email Brenspeed and they will fix it.
Joined: Aug 2022
Posts: 3
From: New Jersey
I've searched through the threads and can't really find anyone having this same problem. Sometimes when leaving work my 06 manual GT will stutter while leaving the parking lot. I let the car warm up for about 30-45 seconds, I then start driving away and get maybe 50-75 feet out of the parking lot and the car will begin stuttering quite a bit for a few seconds. Almost like when you're 15 and learning how to drive a stick and the car lurches & jerks taking off from a start. But in my case I'm already driving away and doing 15 mph or so. It's never done this in the morning only in the late afternoon. I have a Brenspeed tune and it's done this on different tanks of gas.
Thanks