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Car Forum / Ford / Ford Cars / September 2007How do I test an Alternator ? 1996 Ford Taurus
My battery light is on . How do I test the alternator to make sure it is charging ? I do have a volt/OHM meter but where /how do I test it ? Thanks, Raz you should be putting out around 14volts dc at the battery with engine running, http://www.minibite.com/america/malone.htm > My battery light is on . How do I test the alternator to make sure it is > charging ? I do have a volt/OHM meter but where /how do I test it ? > Thanks, > Raz The charging voltage should be well in excess of 12 volts - approaching 14+ at the battery. With the engine running, rap a few times on the alternator housing & see if the light goes out. This may work once or twice to seat the brushes on the slip rings. Rob Rob, The rapping helpped but I know it not a permanent fix. Guess I need to buy a new high preiced alternator. Thanks for the info. , Raz >> My battery light is on . How do I test the alternator to make sure it is >> charging ? I do have a volt/OHM meter but where /how do I test it ? [quoted text clipped - 9 lines] > > Rob > Rob, > The rapping helpped but I know it not a permanent fix. [quoted text clipped - 15 lines] >> >> Rob It need not be high-priced... but they are more than an old Delco. $125 at AutoZone or Advance Auto w/ limited lifetime warranty. Rob > The rapping helpped but I know it not a permanent fix. > Guess I need to buy a new high preiced alternator. So try some new brushes. Should be less than $10. My 88 Tbird's brushes cost me $4.83, and took a whopping 10 minutes to change them. >> The rapping helpped but I know it not a permanent fix. >> Guess I need to buy a new high preiced alternator. [quoted text clipped - 4 lines] > >Can I get these at the lacal parts house ? We have a Napa in town. Thanks, Raz > >> The rapping helpped but I know it not a permanent fix. > > > > So try some new brushes. Should be less than $10. > > > >Can I get these at the lacal parts house ? We have a Napa in town. Most parts places will have them. Might help, might not. Cheap fix, if it does. Alternator Brush Set ECH F425 $9.29 Engine:3.0 L 183 CID V6 OHV (Pushrod Engine); Single Over Head Camshaft Engine w/ 110 Amp Alternator http://napaonline.com/masterpages/NOLMaster.aspx?PageId=470&LineCode=ECH&PartNum ber=F425&Description=Alternator+Brush+Set Alternator Brush & Holder ECH F424 $13.99 Engine:3.0 L 183 CID V6 OHV (Pushrod Engine); Single Over Head Camshaft Engine w/ 110 Amp Alternator http://napaonline.com/masterpages/NOLMaster.aspx?PageId=470&LineCode=ECH&PartNum ber=F424&Description=Alternator+Brush+%26+Holder >> The rapping helpped but I know it not a permanent fix. >> Guess I need to buy a new high preiced alternator. [quoted text clipped - 5 lines] >Your right, $14.95 for the brushes and holder. About 30 min. total and that >was removing/intalling the alt. also. Thanks for the knowledge, Raz > My battery light is on . How do I test the alternator to make sure it is > charging ? I do have a volt/OHM meter but where /how do I test it ? > Thanks, > Raz Can you limp it down to a major parts place? They can test it and the battery , pretty sure you should be getting around 15v at the battery when it's running , don't go sticking the meter on the alternator ! |
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