Cold starts

bigbluemonkey · January 13th, 2009, 12:28 AM

Ok obviously I'm no expert but when my car is left to sit in the cold for a while (this seems to be the only time this occurs) it doesn't want to start. I'll keep the gas pedal down n then eventually the car will stay on but the idle stays very low, around 500ish rpm. Eventually if I keep the car on long enough or if I drive around a little the idle starts to be normal at 1000 rpm? Any ideas? Iac? Idk

Seabee · January 13th, 2009, 12:34 AM

hmm it could be just the cold, but it could be a bunch of other things too. I had a problem similiar to that once. It would start at first but i had to crank it a few times and it did. Bad spark maybe. You do a tune up in ever?

UnixHH · January 13th, 2009, 12:37 AM

sounds very IAC ish to me... how many miles are on the car?

bigbluemonkey · January 13th, 2009, 12:45 AM

108000 miles approx. N no I've never had the car tuned as Long as I've had it other than a diablotune

UnixHH · January 13th, 2009, 12:50 AM

holy jezuz man!!!! replace EVERY filter on that thing and clean your IAC .. if you have a hanes manual check the tune up section... you have alot of work to do boss

Seabee · January 13th, 2009, 12:51 AM

not tuned, like tune up. spark plugs changed, oil, filter, battery checked, alternator checked, fuel system checked or replaced, anything like that, that you did or know of?

Seabee · January 13th, 2009, 12:52 AM

the best way to keep your car in working order, is preventitive maintenence. Get to the potential problems before they become a problem.

UnixHH · January 13th, 2009, 12:53 AM

Originally Posted by NavySeabee87

the best way to keep your car in working order, is preventitive maintenence. Get to the potential problems before they become a problem.

+1 AMEN!!

bigbluemonkey · January 13th, 2009, 01:00 AM

Oh I feel like an idiot LOL that kind of tune up. Ya filters have been replaced n I have been keeping it in order I just know I've never replaced the iac.

UnixHH · January 13th, 2009, 01:01 AM

no need to replace dude!! check it out click here http://www.moddedmustangs.com/cleaning-your-iac.html

bigbluemonkey · January 13th, 2009, 01:02 AM

N I have cleaned out the iac a few times but since the problem comes back I thought it might b just that I need to replace it completely

Safi · January 13th, 2009, 01:03 AM

Originally Posted by bigbluemonkey

Oh I feel like an idiot LOL that kind of tune up. Ya filters have been replaced n I have been keeping it in order I just know I've never replaced the iac.

No, dont replace the IAC, just clean it. Go get some throttle body cleaner, take off IAC, clean with throttle body cleaner, then put it back

But im having the exact same issues as you. If my car sits a while in the cold it refuses to start no matter what. I got some new spark plugs and will be putting them in really soon...hopefully that fixes my problem

UnixHH · January 13th, 2009, 01:03 AM

hmmmmmm..

Seabee · January 13th, 2009, 01:04 AM

the mechanics of vehicles, shit gets tricky sometimes

UnixHH · January 13th, 2009, 01:05 AM

does your idle ever surge a little bit while sitting at a stop sign or redlight or something?

bigbluemonkey · January 13th, 2009, 01:06 AM

Yea Im actually replacing my plugs soon. I'll try cleaning out the iac again n see what happens

UnixHH · January 13th, 2009, 01:06 AM

could be a vacuum leak

Seabee · January 13th, 2009, 01:06 AM

make sure no hoses are loose too

bigbluemonkey · January 13th, 2009, 01:07 AM

Originally Posted by UnixHH

does your idle ever surge a little bit while sitting at a stop sign or redlight or something?

I wouldn't call it a surge but it isn't always stable

UnixHH · January 13th, 2009, 01:08 AM

go buy some starter fluid and start your car and pop the hood and start spraying vacuum lines and the base of the plenum and intake manifold... anywhere air could get in... if the engine revs up then you have found your leak

January 13th, 2009, 12:28 AM	#1
bigbluemonkey Regular 2000 Mustang GT no idea Join Date: Feb 2008 Location: Dirty Jersey Posts: 148 iTrader: 0 reviews	Cold starts Ok obviously I'm no expert but when my car is left to sit in the cold for a while (this seems to be the only time this occurs) it doesn't want to start. I'll keep the gas pedal down n then eventually the car will stay on but the idle stays very low, around 500ish rpm. Eventually if I keep the car on long enough or if I drive around a little the idle starts to be normal at 1000 rpm? Any ideas? Iac? Idk __________________

January 13th, 2009, 12:34 AM	#2
Seabee Whatever it originally would be 05 Saleen #824 Fast as fuck Join Date: Mar 2007 Location: San Diego Ca/Beach Park IL Posts: 7,471 iTrader: 4 reviews	hmm it could be just the cold, but it could be a bunch of other things too. I had a problem similiar to that once. It would start at first but i had to crank it a few times and it did. Bad spark maybe. You do a tune up in ever? __________________ MILITARY CREW ANTI ILLEGALS CREW FOUNDER

January 13th, 2009, 12:37 AM	#3
UnixHH MM Fanatic 2003 Saleen S281 Join Date: Nov 2008 Location: Houston, Tx Posts: 4,274 iTrader: 0 reviews	sounds very IAC ish to me... how many miles are on the car? __________________ 480RWHP 450RWTQ 15psi @ 15* on 91 octane

January 13th, 2009, 12:45 AM	#4
bigbluemonkey Regular 2000 Mustang GT no idea Join Date: Feb 2008 Location: Dirty Jersey Posts: 148 iTrader: 0 reviews	108000 miles approx. N no I've never had the car tuned as Long as I've had it other than a diablotune __________________

January 13th, 2009, 12:50 AM	#5
UnixHH MM Fanatic 2003 Saleen S281 Join Date: Nov 2008 Location: Houston, Tx Posts: 4,274 iTrader: 0 reviews	holy jezuz man!!!! replace EVERY filter on that thing and clean your IAC .. if you have a hanes manual check the tune up section... you have alot of work to do boss __________________ 480RWHP 450RWTQ 15psi @ 15* on 91 octane

January 13th, 2009, 12:51 AM	#6
Seabee Whatever it originally would be 05 Saleen #824 Fast as fuck Join Date: Mar 2007 Location: San Diego Ca/Beach Park IL Posts: 7,471 iTrader: 4 reviews	not tuned, like tune up. spark plugs changed, oil, filter, battery checked, alternator checked, fuel system checked or replaced, anything like that, that you did or know of? __________________ MILITARY CREW ANTI ILLEGALS CREW FOUNDER

January 13th, 2009, 12:52 AM	#7
Seabee Whatever it originally would be 05 Saleen #824 Fast as fuck Join Date: Mar 2007 Location: San Diego Ca/Beach Park IL Posts: 7,471 iTrader: 4 reviews	the best way to keep your car in working order, is preventitive maintenence. Get to the potential problems before they become a problem. __________________ MILITARY CREW ANTI ILLEGALS CREW FOUNDER

January 13th, 2009, 01:00 AM	#9
bigbluemonkey Regular 2000 Mustang GT no idea Join Date: Feb 2008 Location: Dirty Jersey Posts: 148 iTrader: 0 reviews	Oh I feel like an idiot LOL that kind of tune up. Ya filters have been replaced n I have been keeping it in order I just know I've never replaced the iac. __________________

January 13th, 2009, 01:01 AM	#10
UnixHH MM Fanatic 2003 Saleen S281 Join Date: Nov 2008 Location: Houston, Tx Posts: 4,274 iTrader: 0 reviews	no need to replace dude!! check it out click here http://www.moddedmustangs.com/cleaning-your-iac.html __________________ 480RWHP 450RWTQ 15psi @ 15* on 91 octane

January 13th, 2009, 01:02 AM	#11
bigbluemonkey Regular 2000 Mustang GT no idea Join Date: Feb 2008 Location: Dirty Jersey Posts: 148 iTrader: 0 reviews	N I have cleaned out the iac a few times but since the problem comes back I thought it might b just that I need to replace it completely __________________

January 13th, 2009, 01:03 AM	#13
UnixHH MM Fanatic 2003 Saleen S281 Join Date: Nov 2008 Location: Houston, Tx Posts: 4,274 iTrader: 0 reviews	hmmmmmm.. __________________ 480RWHP 450RWTQ 15psi @ 15* on 91 octane

January 13th, 2009, 01:04 AM	#14
Seabee Whatever it originally would be 05 Saleen #824 Fast as fuck Join Date: Mar 2007 Location: San Diego Ca/Beach Park IL Posts: 7,471 iTrader: 4 reviews	the mechanics of vehicles, shit gets tricky sometimes __________________ MILITARY CREW ANTI ILLEGALS CREW FOUNDER

January 13th, 2009, 01:05 AM	#15
UnixHH MM Fanatic 2003 Saleen S281 Join Date: Nov 2008 Location: Houston, Tx Posts: 4,274 iTrader: 0 reviews	does your idle ever surge a little bit while sitting at a stop sign or redlight or something? __________________ 480RWHP 450RWTQ 15psi @ 15* on 91 octane

January 13th, 2009, 01:06 AM	#16
bigbluemonkey Regular 2000 Mustang GT no idea Join Date: Feb 2008 Location: Dirty Jersey Posts: 148 iTrader: 0 reviews	Yea Im actually replacing my plugs soon. I'll try cleaning out the iac again n see what happens __________________

January 13th, 2009, 01:06 AM	#17
UnixHH MM Fanatic 2003 Saleen S281 Join Date: Nov 2008 Location: Houston, Tx Posts: 4,274 iTrader: 0 reviews	could be a vacuum leak __________________ 480RWHP 450RWTQ 15psi @ 15* on 91 octane

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January 13th, 2009, 01:06 AM	#18
Seabee Whatever it originally would be 05 Saleen #824 Fast as fuck Join Date: Mar 2007 Location: San Diego Ca/Beach Park IL Posts: 7,471 iTrader: 4 reviews	make sure no hoses are loose too __________________ MILITARY CREW ANTI ILLEGALS CREW FOUNDER

January 13th, 2009, 01:08 AM	#20
UnixHH MM Fanatic 2003 Saleen S281 Join Date: Nov 2008 Location: Houston, Tx Posts: 4,274 iTrader: 0 reviews	go buy some starter fluid and start your car and pop the hood and start spraying vacuum lines and the base of the plenum and intake manifold... anywhere air could get in... if the engine revs up then you have found your leak __________________ 480RWHP 450RWTQ 15psi @ 15* on 91 octane

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