When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Just remembered that I had this code in my truck and posted it and tdpower gave me this bit of info. (I think a 1670 can be caused by a low battery voltage issue. So take care of that and see if it comes back.) Clear your codes and check your batteries.
Nice thread. Was helpful to me, too. I've got a question... Battery indicator on steady, radio stops working, dome lights won't come on, ABS light goes out, headlights almost completely out by the time I pull in my driveway.
So this morning I feel the alternator and it is about 'room temperature', but definitely not cold. Wouldn't say 'hot' though.
I unhooked batteries, carried them back to NAPA. They test them. One is bad. They were purchased just 3 mos ago. 1st: Do I really need to replace the 3 mo old 'good' one too? 2nd: I don't have a multimeter. Is there a chance my alternator is OK and it was just this bad battery that was the culprit?
THANKS for any and all help!
I would venture to say you need to replace your alternator, as far as the batteries, I am kind of in the same boat, only one tested bad, so only one was warrantied. Sadly, I guess I will have to let you know how tht goes..
I'm not Pat but I would check the voltage regulator To. Harbor freight has a digital meter for 3.00 even I can afford have one for house, RV, Truck,and work Van. John
I'm not the guy with the P1670 issue. I was wondering if my issue is NOT the alternator, but a bad battery?
Originally Posted by Trakk
Thanks Pat! Would you consider having just the voltage regulator checked and replaced? We've got an auto-electric shop nearby.
The bad batt is discharging the good batt. After only 3 monthsw I would just replace the bad batt and go from there. If you don't have a volt meter use the truck volt meter to see if there is more voltage when engine is running then with engine off. That would be a good indication that the alt is a least trying to charge the batts.
Per my experience if you have one bad battery and you caught it quickly enough that you don't think that it caused any harm to the second battery. IE completely discharged it then you should be fine. Worst case scenario your over all battery life of both batteries will be diminished a bit.
Also, if you keep ending up with bad batteries then replace both batteries and the alternator no questions asked. I faulty alternator can damage batteries and faulty batteries can damage alternators.
This is a ruthless cycle that I have been through before.
Bad battery - Replaced
Bad Alternator - Replaced
bad battery - Replaced
Bad Alternator - Replaced
Bad battery - Replaced battery and alternator at the same time. Cycled ended but keep in mind there was about a 6 to 12 month gap between repairs.
The vehicle that I had this problem on is still running on the same battery and alternator today and it has now been about 7 years and I am sure the battery will be replaced shortly.
Thanks Pat! Would you consider having just the voltage regulator checked and replaced? We've got an auto-electric shop nearby.
I am back and forth on this one, I use to rebuild alternators to, it was fun, but when I can buy and alternator for 120.00 at a Autozone, and have a lifetime warranty on it.. it is just worth it to me. Dont get me wrong, my preference would be to buy one from a local shop, but what happens if I am in Tenn and I loose my alternator?
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.