So it's been about 3 weeks now. Car is not a dd obviously. So car was running great. It's a 2006 GT. Go to move it one morning after it was sitting for a few days and car sounds crammed and voltage meter is in red and all electronics shut down. Once idle kicks down the volts go down and electronics come back. If I hitgas volts shoot up. So I figure voltage reg and buy a new alternator. Not refurb, but new. Same deal. Ok maybe I got a bad one with same issue. Doubtful but I exchange for another. Same issue. So now when I start I have not seen volts jump up yet. I've only driven about 12 miles but the car is still running as if missing, when first start you can hear it almost sounds like back firing but once starts to warm it smooths out. Now if I ease on gas it's ok. But if I give a little bit heavy gas, car hesitates, bogs. I data logged car and had 2 very reputable S197 tuners review and both said everything looks good. I know very shortly the volts are going to shoot up again. I am truly at a loss. One local shop has no clue and said they would need hours to go through all wiring which means a lot of money with possibly no answer. Any help at all would be much appreciated as I am just ready to throw in towel. Battery tested ok, checked wiring to pCm and no shorts. Only recent things are tail lights, front 02 sensors and throttle body within past 2 months. Mods are just CAI, steeda UDP and off road x. Changed plugs and coil packs this summer
Voltage issues. Need help!!
- Thread starter Mike96GT
- Start date
I believe there could possibly be a problem with the computer. Will try and contact someone who had same problem this past summer. It even happened on a wine cruise we were doing. Car ran fine acted up then almost quite completely.
Mattstang also knows him and might be able to get in touch with him, not sure he's a member here. [MENTION=1112]mattstang[/MENTION] do you remember what Nick did to his mustang to fix the problem?
Mattstang also knows him and might be able to get in touch with him, not sure he's a member here. [MENTION=1112]mattstang[/MENTION] do you remember what Nick did to his mustang to fix the problem?
Stock tail lights. I removed sequentials . I actually just spoke to my tuner and he said he thinks 100% ground issue and makes sense. I actually just found a post in another thread when I did a search for bad ground and there was a guy with same exact issue and same car as me and ended up being a bad ground. Going to clean grounds and also add a ground wire from alternator direct to battery ground. Tuner said this should def solve issue. Fingers crossed!!!!
So last night late i ran an additional ground from the alternator to the battery ground and def made an improvement but still not 100%. It still hesitates under heavy throttle but when we tested volts off battery they were steady 14.1
Im thinking of removing the steeda udp and after market radioi . I wish i had a local guy that was good on these cars that could take a look. All shops want me to leave car for days and will charge me a fortune just to trouble shoot. Sucks
Im thinking of removing the steeda udp and after market radioi . I wish i had a local guy that was good on these cars that could take a look. All shops want me to leave car for days and will charge me a fortune just to trouble shoot. Sucks