75Bronc
Sr. Member
- Joined
- Feb 5, 2008
- Messages
- 425
I just put a replacement 130 amp 3G alternator in my bronco. The part store warrantied my old one even though it didn't end up being what was wrong. I had just lost 12V to my ignition. Anyways here is the issue.
The day I installed the new alternator I drove 120 miles and through Phoenix. There was a wreck on the 10 and I was stopped in traffic for 45 minutes. During this time my engine temps rose a little but not bad, 205 ish. My alternator however stopped charging. When I got it back up to highway speeds, it started charging intermittent for a little while. And then pretty soon it was charging good again. When I got to my destination not far from the wreck, it was charging perfect. I checked it out and everything seemed right. I drove it home 120 miles and have put on a couple hundred more miles since. No hiccups in charging. My alternator is on F250 front dress and it sits up high on passenger side with no air flow, no alternator fan and a radiator hose right in front of it.
Could my alternator have over heated and started cooling again when it got air flow? What else could have caused this? Should I be concerned about my alternator?
Also, my old alternator charged around 14.7 and this new alternator charges around 14.2-14.3? Why the .5 difference? Is this a concern?
Thanks!
The day I installed the new alternator I drove 120 miles and through Phoenix. There was a wreck on the 10 and I was stopped in traffic for 45 minutes. During this time my engine temps rose a little but not bad, 205 ish. My alternator however stopped charging. When I got it back up to highway speeds, it started charging intermittent for a little while. And then pretty soon it was charging good again. When I got to my destination not far from the wreck, it was charging perfect. I checked it out and everything seemed right. I drove it home 120 miles and have put on a couple hundred more miles since. No hiccups in charging. My alternator is on F250 front dress and it sits up high on passenger side with no air flow, no alternator fan and a radiator hose right in front of it.
Could my alternator have over heated and started cooling again when it got air flow? What else could have caused this? Should I be concerned about my alternator?
Also, my old alternator charged around 14.7 and this new alternator charges around 14.2-14.3? Why the .5 difference? Is this a concern?
Thanks!