Help Major Problem With Car!

mrnickleye · 08-02-2006, 01:32 AM

I guess you need to join a mustangy forum.

Toyotafanatic · 08-02-2006, 05:15 AM

I WILL NEVER JOIN ANY KIND OF FORD FORUM!

suprasforlife · 08-02-2006, 05:49 AM

Sounds like you have a major short. Make sure all the grounds are hooked up and not broke, sounds like the short is in the heating and/or ac system. Does it run ok if the heat and ac is off? Lagging when floored is usually a fuel issue, check the fuel filter make sure its clean, check fuel pump if needed, pressure regulator(s), injectors etc. Does it have the stock stereo in it? If not could be a bad install, if its not stock maybe check behind the stereo and make sure the wires back there did not get cut or pinched or something. Another thing you can do is check the alternator, start the car, remove the positive cable from the battery and if it stays running you know the alt is good, if it dies your alt is crap. Only keep the pos cable off for a few seconds, not good for the alt for it to be off long, about 3 seconds will let you know because it will die right away. Make sure that your ac system is charged right to. The high reving could be from a sensor, check the heat ones first. O2 next. Not sure this helps any but I owned a mustang about 12 years ago and it was an electrical nightmare, did not keep it long.

Toyotafanatic · 08-03-2006, 12:17 AM

Yea, for some reason mustangs had electrical problems, It drives me crazy! but i'll try those things tonight.

Quote:

Originally Posted by suprasforlife

Sounds like you have a major short. Make sure all the grounds are hooked up and not broke, sounds like the short is in the heating and/or ac system. Does it run ok if the heat and ac is off? Lagging when floored is usually a fuel issue, check the fuel filter make sure its clean, check fuel pump if needed, pressure regulator(s), injectors etc. Does it have the stock stereo in it? If not could be a bad install, if its not stock maybe check behind the stereo and make sure the wires back there did not get cut or pinched or something. Another thing you can do is check the alternator, start the car, remove the positive cable from the battery and if it stays running you know the alt is good, if it dies your alt is crap. Only keep the pos cable off for a few seconds, not good for the alt for it to be off long, about 3 seconds will let you know because it will die right away. Make sure that your ac system is charged right to. The high reving could be from a sensor, check the heat ones first. O2 next. Not sure this helps any but I owned a mustang about 12 years ago and it was an electrical nightmare, did not keep it long.

superpage1987 · 08-03-2006, 12:49 AM

Well Suprasforlife said basicly what i was going to the only thing i have to add is that the high rev could be caused be an improper ajusted high idle i have herd of fords doing this befor basicly the alternator dosnt put out enough power at idle when the heater is on so the car goes to high idle and if it is ajusted wrong the car idles exsevly high

Toyotafanatic · 08-03-2006, 01:06 AM

I dont think I can adjust Idle, its all computerly done by the ecu, do you know if I can adjust the high idle?

Quote:

Originally Posted by superpage1987

Well Suprasforlife said basicly what i was going to the only thing i have to add is that the high rev could be caused be an improper ajusted high idle i have herd of fords doing this befor basicly the alternator dosnt put out enough power at idle when the heater is on so the car goes to high idle and if it is ajusted wrong the car idles exsevly high

superpage1987 · 08-03-2006, 09:23 PM

Well i am not totaly sure how you can ajust it. You might try swinging by you local ford dealer tell them your problum. See if they can tell you what they think it might be more than likly it is a problum they have seen before ,and can give you some pointers.

Isphius · 08-06-2006, 09:58 PM

Some helpful info that will let me help you is what year, motor and trans, And theni should be able to help a little bit. But in a general way, If it is carbed, When you floor it and it dies, Its because its either out of tune or glogged up. Get some in tank carb cleaner. And the electrical issue does sound like a short. Look inside your cig lighter....Is there any loose change or anything inside of it? this happens to cars all the time...get change in the socket. Just pull the heater fuse and see if the battery keeps dieing. And if it does, Pull one at a time untill it holds its charge. It could even be as simple as a bad alternator or a bad battery from the factory

Toyotafanatic · 08-07-2006, 01:09 AM

Its a 1997 Mustang SVT Cobra, with a 280, I got the stumbleing taken care of, everything is fixed, we put a new battery in it and it works fine, I think the alternator is bad though, so Im going to get it tested, thanks

Quote:

Originally Posted by Isphius

Some helpful info that will let me help you is what year, motor and trans, And theni should be able to help a little bit. But in a general way, If it is carbed, When you floor it and it dies, Its because its either out of tune or glogged up. Get some in tank carb cleaner. And the electrical issue does sound like a short. Look inside your cig lighter....Is there any loose change or anything inside of it? this happens to cars all the time...get change in the socket. Just pull the heater fuse and see if the battery keeps dieing. And if it does, Pull one at a time untill it holds its charge. It could even be as simple as a bad alternator or a bad battery from the factory

08-02-2006, 01:32 AM	#1
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	I guess you need to join a mustangy forum. __________________ Had a Red 1989 N/A. Automatic. Sports Pkg. w/wing. TEMS, and some nice MODS. Sold to a friend 10/08/08.

08-02-2006, 05:15 AM	#2
Toyotafanatic 3" Exhaust Join Date: Jul 2006 Location: Victorville, CA Posts: 65	I WILL NEVER JOIN ANY KIND OF FORD FORUM! __________________ BOOST IT!

08-06-2006, 09:58 PM	#8
Isphius 500whp yet? Join Date: Nov 2005 Location: Long branch, NJ Posts: 1,006	Some helpful info that will let me help you is what year, motor and trans, And theni should be able to help a little bit. But in a general way, If it is carbed, When you floor it and it dies, Its because its either out of tune or glogged up. Get some in tank carb cleaner. And the electrical issue does sound like a short. Look inside your cig lighter....Is there any loose change or anything inside of it? this happens to cars all the time...get change in the socket. Just pull the heater fuse and see if the battery keeps dieing. And if it does, Pull one at a time untill it holds its charge. It could even be as simple as a bad alternator or a bad battery from the factory __________________ Yay the supra assistant is gone!!! WEEE!!

08-02-2006, 05:49 AM	#3
suprasforlife 3" Exhaust Join Date: Jun 2006 Location: Montana Posts: 71	Sounds like you have a major short. Make sure all the grounds are hooked up and not broke, sounds like the short is in the heating and/or ac system. Does it run ok if the heat and ac is off? Lagging when floored is usually a fuel issue, check the fuel filter make sure its clean, check fuel pump if needed, pressure regulator(s), injectors etc. Does it have the stock stereo in it? If not could be a bad install, if its not stock maybe check behind the stereo and make sure the wires back there did not get cut or pinched or something. Another thing you can do is check the alternator, start the car, remove the positive cable from the battery and if it stays running you know the alt is good, if it dies your alt is crap. Only keep the pos cable off for a few seconds, not good for the alt for it to be off long, about 3 seconds will let you know because it will die right away. Make sure that your ac system is charged right to. The high reving could be from a sensor, check the heat ones first. O2 next. Not sure this helps any but I owned a mustang about 12 years ago and it was an electrical nightmare, did not keep it long.

08-03-2006, 12:49 AM	#5
superpage1987 Intake Join Date: Jun 2006 Location: lee, ME Posts: 44	Well Suprasforlife said basicly what i was going to the only thing i have to add is that the high rev could be caused be an improper ajusted high idle i have herd of fords doing this befor basicly the alternator dosnt put out enough power at idle when the heater is on so the car goes to high idle and if it is ajusted wrong the car idles exsevly high

08-03-2006, 09:23 PM	#7
superpage1987 Intake Join Date: Jun 2006 Location: lee, ME Posts: 44	Well i am not totaly sure how you can ajust it. You might try swinging by you local ford dealer tell them your problum. See if they can tell you what they think it might be more than likly it is a problum they have seen before ,and can give you some pointers.