Car doesn't run well when cold.

RAGEman · January 7th, 2008, 07:18 PM

I've noticed that my car does not run well when it is cold. (morning, or cold day) and was wondering if these cars are just cold natured. It runs fine, but when I give it gas, it may hesitate a bit. It doesn't pick up speed like it does when it warms up. Normal??

Mustang RacR94 · January 7th, 2008, 07:31 PM

nope thats not normal, i have a 03 mach and it wont hesitate at all, just check your plugs and wires, it should start up and be able to go right away without hesitating, you might not get full power when you just start up and go but you shouldnt get any major hesitation or stuttering, as long as it only seems a little slower or if when you hit the pedal it takes like a second to kick in is normal to as long as its not serious hesiation

RAGEman · January 7th, 2008, 08:01 PM

No, it's nothing serious at all, It just takes it maybe 5 min to warm up and start running normal. There is no rough idle or obvious hesitation, but I can tell a difference.

GTsetGO · January 7th, 2008, 08:03 PM

mine doesn't like to start when it is cold and I have since found out that it is the gas. i now use shell 93 and that is it. if i use anything else, it runs like $hit for the first few minutes

RAGEman · January 7th, 2008, 08:15 PM

Originally Posted by GTsetGO

mine doesn't like to start when it is cold and I have since found out that it is the gas. i now use shell 93 and that is it. if i use anything else, it runs like for the first few minutes

I do run 93. Usually Chevron though. I don't think it would really differ.

BlckBullitt01 · January 7th, 2008, 08:19 PM

I'm not an expert on this, but from everything I have heard you should never floor or "step on it" until you have allowed your engine time to properly warm up. And yes, if you do it should be much slower as the engine has not warmed up yet.

neckbonekat · January 7th, 2008, 08:21 PM

Sounds normal to me. My car is not a big fan of the cold weather. It hesitates a little at the first few stop signs, but after it gets warm it's fine. I just switched my tune back to the 87 octane tune for the winter due to ridiculous gas prices and it had no effect
.

PowerShiftz02GT · January 7th, 2008, 09:17 PM

Originally Posted by RAGEman

I've noticed that my car does not run well when it is cold. (morning, or cold day) and was wondering if these cars are just cold natured. It runs fine, but when I give it gas, it may hesitate a bit. It doesn't pick up speed like it does when it warms up. Normal??

hmm, i think mine is noticeably faster in when it is cold out. I get thrown in my seat a little bit more when it is cold out rather then when it is warm out. Also mine has no hesitation when i get on it. Soo IMO i think you got yourself a problem.

neckbonekat · January 7th, 2008, 09:22 PM

Originally Posted by PowerShiftz02GT

hmm, i think mine is noticeably faster in when it is cold out. I get thrown in my seat a little bit more when it is cold out rather then when it is warm out. Also mine has no hesitation when i get on it. Soo IMO i think you got yourself a problem.

You are telling me that you come out in the morning, start your car and drive away 20-30 secxonds later and your car runs just as well as it does when it's warm? Is your car garage kept? He's not talking about once the car is warmed up and been driven like 5 minutes. He's talking about first thing in the morning even if you let it defrost for a few minutes. At least that is what I'm talking about. LOL

RAGEman · January 7th, 2008, 09:28 PM

Originally Posted by neckbonekat

You are telling me that you come out in the morning, start your car and drive away 20-30 secxonds later and your car runs just as well as it does when it's warm? Is your car garage kept? He's not talking about once the car is warmed up and been driven like 5 minutes. He's talking about first thing in the morning even if you let it defrost for a few minutes. At least that is what I'm talking about. LOL

Yes.

Naturally cars do run better in cold weather, but I'm talking about when the engine is cold.

Mustang RacR94 · January 7th, 2008, 10:44 PM

motors do not run better before there warmed up, period lol

00gtCoolGuy · January 7th, 2008, 10:46 PM

i had that same problem in my 300ZX...ended up being a sensor issue...not sure which one...02?...different cars though so i dunno

weems · January 7th, 2008, 11:20 PM

no problem man , and neck where the hell have you been?!?

RAGEman · January 7th, 2008, 11:48 PM

Originally Posted by Mustang RacR94

motors do not run better before there warmed up, period lol

On my Camaro, my best E/T's were when I let it sit for a few hours, pushed it through the lines and ran it. It did not run better when hot.

lonestarrider · January 8th, 2008, 04:51 PM

Yeah, when my engine is cold it feels like it lost 2 pistons. After about 2 minutes it runs fine though. I considered normal now.

00redgt · January 8th, 2008, 05:00 PM

but they sound badass when there cold,at least mine does

Smoothgrandmama · January 8th, 2008, 05:02 PM

ummm both of my cars run Fine Cold.............
Crank and GOOOOOOOOO!

And the Colder it ia outside the better Your car will perform!

drazga97 · January 8th, 2008, 05:40 PM

how cold can it be in texas though? i mean the engines still cold but atleast its not frozen. the other week up here in jersey it was low 20s so my car doesnt run good untill its been on for atleast 5-10 minutes

Trick Tuners · January 8th, 2008, 05:47 PM

Originally Posted by Smoothgrandmama

ummm both of my cars run Fine Cold.............
Crank and GOOOOOOOOO!

And the Colder it ia outside the better Your car will perform!

Thats how it should be. I know you are not supposed to beat on your car when its cold, but mine feels like it has another 50hp on a quick stab on a cold day after about 1-2 min of warm up. If you car stumbles or is hard to start when cold, and you have a custom tune, then call up your dealer and tell him to fix it.

lonestarrider · January 8th, 2008, 05:51 PM

Originally Posted by drazga97

how cold can it be in texas though? i mean the engines still cold but atleast its not frozen. the other week up here in jersey it was low 20s so my car doesnt run good untill its been on for atleast 5-10 minutes

Well, we call 60s and lower cold

.

January 7th, 2008, 07:18 PM	#1
RAGEman Enthusiast 1965 Mustang Fastback N/A Join Date: Dec 2007 Location: La Porte, Texas Posts: 819 iTrader: 0 reviews	Car doesn't run well when cold. I've noticed that my car does not run well when it is cold. (morning, or cold day) and was wondering if these cars are just cold natured. It runs fine, but when I give it gas, it may hesitate a bit. It doesn't pick up speed like it does when it warms up. Normal??

January 7th, 2008, 07:31 PM	#2
Mustang RacR94 MM Fanatic 99 cobra N/A Join Date: Dec 2006 Location: Fayetteville NC Posts: 3,170 iTrader: 0 reviews	cold nope thats not normal, i have a 03 mach and it wont hesitate at all, just check your plugs and wires, it should start up and be able to go right away without hesitating, you might not get full power when you just start up and go but you shouldnt get any major hesitation or stuttering, as long as it only seems a little slower or if when you hit the pedal it takes like a second to kick in is normal to as long as its not serious hesiation __________________ 99 Cobra 03 Cobra motor AFCO H/E Pulley JLT CAI BBK L/T off road H/steeda catback SCT MAF Tune 03 cobra pumps HVGC

January 7th, 2008, 08:03 PM	#4
GTsetGO Cigar Assassin 2004 Mustang GT 12.88 @ 112 Join Date: Aug 2005 Location: A Galaxy Far, Far Away Posts: 14,083 iTrader: 10 reviews	mine doesn't like to start when it is cold and I have since found out that it is the gas. i now use shell 93 and that is it. if i use anything else, it runs like $hit for the first few minutes __________________ Cigar Samplers for Sale 2008 Acura TL-S - 2008 Honda Pilot EX-SE - 2008 Cain F Big Bear Paradox

January 7th, 2008, 08:21 PM	#7
neckbonekat I Post Entirely Way Too Much 2005 Cadillac STS V8 ???????????????? Join Date: Dec 2006 Location: Upstate NY Posts: 6,344 iTrader: 3 reviews	Sounds normal to me. My car is not a big fan of the cold weather. It hesitates a little at the first few stop signs, but after it gets warm it's fine. I just switched my tune back to the 87 octane tune for the winter due to ridiculous gas prices and it had no effect . __________________ ITEMS FOR SALE! 4.10 GEARS + BEARING KIT

January 7th, 2008, 10:44 PM	#11
Mustang RacR94 MM Fanatic 99 cobra N/A Join Date: Dec 2006 Location: Fayetteville NC Posts: 3,170 iTrader: 0 reviews	cold motors do not run better before there warmed up, period lol __________________ 99 Cobra 03 Cobra motor AFCO H/E Pulley JLT CAI BBK L/T off road H/steeda catback SCT MAF Tune 03 cobra pumps HVGC

January 7th, 2008, 08:01 PM	#3
RAGEman Enthusiast 1965 Mustang Fastback N/A Join Date: Dec 2007 Location: La Porte, Texas Posts: 819 iTrader: 0 reviews	No, it's nothing serious at all, It just takes it maybe 5 min to warm up and start running normal. There is no rough idle or obvious hesitation, but I can tell a difference.

January 7th, 2008, 08:19 PM	#6
BlckBullitt01 Regular TT Bullitt Join Date: Jun 2007 Posts: 263 iTrader: 2 reviews	I'm not an expert on this, but from everything I have heard you should never floor or "step on it" until you have allowed your engine time to properly warm up. And yes, if you do it should be much slower as the engine has not warmed up yet.

January 7th, 2008, 10:46 PM	#12
00gtCoolGuy Enthusiast 2000 Mustang GT 13.67 @ 99.3..5000 ft D.A. Join Date: Oct 2007 Location: San Antonio, TX Posts: 692 iTrader: 1 reviews	i had that same problem in my 300ZX...ended up being a sensor issue...not sure which one...02?...different cars though so i dunno __________________ 2000 Mustang GT- 4.10's, Hoosier DR's, JLT, 75 mm TB, Plenum, MAC LT's, VRS O/R X-pipe, MAC Catback 13.671 @ 99.11 (1.80 60') 5000+ ft above sea level - in El Paso, TX http://www.youtube.com/watch?v=U2l4JdEg3hg

January 7th, 2008, 11:20 PM	#13
weems Tech Exchange Head Honcho 2003 SVT Cobra 11.70 @ 121 Join Date: Aug 2006 Location: Forsyth/Statesboro, GA Posts: 9,176 iTrader: 3 reviews	no problem man , and neck where the hell have you been?!?

January 8th, 2008, 04:51 PM	#15
lonestarrider Regular Join Date: Jul 2007 Location: Houston Posts: 360 iTrader: 0 reviews	Yeah, when my engine is cold it feels like it lost 2 pistons. After about 2 minutes it runs fine though. I considered normal now. __________________ 2003 Sonic Blue Mustang GT Steeda cold air intake Bassani off-road x-pipe Magnapacks Steeda Tri-Ax Shifter

January 8th, 2008, 05:00 PM	#16
00redgt MM Fanatic 2000 mustang gt Join Date: Oct 2007 Location: vansant,va Posts: 4,092 iTrader: 5 reviews	but they sound badass when there cold,at least mine does __________________

January 8th, 2008, 05:02 PM	#17
Smoothgrandmama Assistant to the Manager 12 GT 8.46@88 1/8 Join Date: Apr 2007 Location: Willis,Texas Posts: 7,157 iTrader: 6 reviews	ummm both of my cars run Fine Cold............. Crank and GOOOOOOOOO! And the Colder it ia outside the better Your car will perform! __________________ Join The MM Facebook: Modded Mustangs Facebook Vote For Modded Mustangs Ride of the Month Eskimo Brothers To Smooth: Safi, Blitz34, Graystang01, WillTheThrill, Bwal, 101Fng

January 8th, 2008, 05:40 PM	#18
drazga97 Noob Slayer 2004 Mustang GT 13.82 @ 101.09 Join Date: Oct 2007 Location: New Jersey Posts: 2,458 iTrader: 1 reviews	how cold can it be in texas though? i mean the engines still cold but atleast its not frozen. the other week up here in jersey it was low 20s so my car doesnt run good untill its been on for atleast 5-10 minutes __________________ 2003 Black Cobra 10th Anniversary 2.8 Kenne Bell Mammoth LC - Built SRA - T56 - E85 - Spray - Stock Longblock - True Forged Mach 5s 2004 Silver GT 5 speed - SOLD MM Cobra Club Member# 97

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