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Posted by: LATT533

OK on the way home the other night on some nice twisties and I downshift into 2nd to bleed off speed into a sharp right turn, the tach hits 4500 and a second after the shift the engine backfires pretty good........good enough to catch the faint flash, (it was 930 at night). Anyway right after my voltage meter starts twiching and my factory stereo quits playing for 10 seconds, additionally the lights go real dim and the voltage meter drops to 4-6 volts. After that the voltage returns to in between 10-12 volts. This episode continues till I get home only about 1.5 miles. What could I have done or has anyone experienced this before. I would like to get a starting point in my trouble shooting so as not to spend all summer to figure this out. I just recently replaced the altenator with a direct replace from Advanced Auto. Also I have underdrive pullies........... Thanks all please respond here or direct at latt533@bellsouth.net. Oh yeah I am a 95 GT 5.0 pretty much stock with exception of full exhaust including headers and X pipe. It has 61,000 miles and one hell of a suspention

Posted by: liquide

Are you still running your factory stock installed Alternator , you might want to have that checked. I just had mine replaced year ago 93 lx 5.0 lasted long time. But i think i want to add at least a 100 amp one now im running the stock 75 amp. well hope that helps Liquide out

Posted by: Mustang5L5

Sounds like your alt went out during the shift. Remove it and have it tested at a parts store

Posted by: Aussie XAXB

Mustang5L5 seems to have a handle on it.

Sounds like a "burp" with the alternator. New doesn't always mean "good".

Steve

Posted by: Calyp50LX

You said the engine 'flashed' or backfired, do you think it was from the rear or the front of the vehicle that you saw the flash? Also, any drivability issues?

Posted by: LATT533

This one will make you laugh........... I have my battery relocated in the trunk. I just got a new one cause my alt died and drained the battery shorting a cell in the process. Any way I replaced both and then experianced the problem. Well I was flat out in some mild twisties. What happened was the negative cable popped off the battery and shorted on the positive flashing my electrical system!!! The negative cable came loose because when I tightened her down I did not relize as the nut became tight the nagative terminal did not tighten yet, thus it was pretty loose. A few tight corners and a slight bit of play in the battery box led the cable to pop off. Now all electrical woes check out good and no further issues as of yet!! Now off to see Thumper

Quote:

Originally Posted by Calyp50LX

You said the engine 'flashed' or backfired, do you think it was from the rear or the front of the vehicle that you saw the flash? Also, any drivability issues?