99 silverado not charging after new alternator and battery

Asked by Mar 23, 2015 at 08:53 PM about the Chevrolet Silverado 1500HD

Question type: Maintenance & Repair

any ideas as what else might be the problem ?

2 Answers

59,055

Have the alternator bench tested. You may have gotten a defect. Also, check the fuses in the underhood fuse box. Be sure that the battery cable connections, at both ends, are clean and tight. Same deal with the connections at the alternator. HTH. -Jim

25

Went and go myself a new alternator to a local parts store, after I told him I had a 2000 silverado truck 5.3L vortex motor and he ask me if I had heated seats and all.He figured that my truck needed the 135 amp alternator (the big one) After I Installed the new alternator the battery light was still on and still not charging.... Brought it back the next day and it was another salesman.... I told him that I just installed new alternator and was not charging..... That then he told me that chev will only take the same amperage as the original one or the (ECM or computer will not allow it to run) and only GM or Chev does that... Gave me a 12v 105A n instead and I changed it right there and it works like a charm.....Therefore you can not go for a more powerful one........

2 out of 2 people think this is helpful.

Your Answer

Add photo

Related Questions

  • 2004 silverado Z71 4x4 2 answers

    if my truck for three days the battery will go dead and it is a new battery when running it's missing I change wire plugs coil pack map sensor knock sensor tps sensor injector lot more still doing t...

    2003 Chevrolet Silverado 1500HD LS Crew Cab Short Bed 4WD

    -

    Maintenance & Repair

  • speedometer and fuel guage not working 4 answers

    disconnected battery to install stereo now speedometer and fuel guage not working

    2002 Chevrolet Silverado 1500HD LT Crew Cab Short Bed 2WD

    -

    Maintenance & Repair

  • Dead Battery 1 answer

    I have a 2003 chevy silverado 1500 hd and the battery dies over night. I replaced the battery and the alternator, the problem remains. I have removed the fuses for the radio, cigarette lighters, a...

    2003 Chevrolet Silverado 1500HD LT Crew Cab Short Bed 4WD

    -

    Maintenance & Repair

  • 99chev 1 answer

    went out to start truck turn key and nothing.lights radio horn ect.all work cleaned battery terminals battery only 6mo.old changed starter relay is it the starter?

    2001 Chevrolet Silverado 1500HD HD LS Crew Cab 4WD

    -

    Maintenance & Repair

  • 92 silverado not charging after new alternator and battery 7 answers

    1992 Chevrolet C/K 1500 Silverado Standard Cab LB

    -

    Maintenance & Repair

Search Chevrolet Silverado 1500HD Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Chevrolet Silverado 1500HD Experts

#1 madatmysuburban
madatmysuburban
Reputation 310
#2 charlandk
charlandk
Reputation 210
#3 Drew6350
Drew6350
Reputation 200
View All

Related Models For Sale

Used Chevrolet Silverado 1500
2,603 Great Deals out of 152,727 listings starting at $1,500
Used Chevrolet Silverado 2500HD
395 Great Deals out of 27,338 listings starting at $2,998
Used Ford F-150
3,136 Great Deals out of 208,989 listings starting at $1,200
Used GMC Sierra 1500
1,002 Great Deals out of 60,427 listings starting at $1,299
Used GMC Sierra 1500HD
4 Great Deals out of 114 listings starting at $4,500
Used Dodge Ram 1500
517 Great Deals out of 13,131 listings starting at $1,800
Used Chevrolet Silverado 2500
8 Great Deals out of 290 listings starting at $3,995
Used Ford F-250 Super Duty
474 Great Deals out of 43,396 listings starting at $2,750
Used Toyota Tundra
659 Great Deals out of 28,449 listings starting at $2,798
Used GMC Sierra 2500HD
154 Great Deals out of 13,288 listings starting at $3,500
Used Dodge Ram 2500
168 Great Deals out of 5,646 listings starting at $2,995
Used Chevrolet Tahoe
869 Great Deals out of 28,110 listings starting at $1,700
Used Toyota Tacoma
718 Great Deals out of 32,218 listings starting at $2,750
Used Ram 1500
1,320 Great Deals out of 115,829 listings starting at $6,500
Used Chevrolet Camaro
433 Great Deals out of 40,831 listings starting at $3,500