Battery light blinking, already changed alternator?
03-11-2011, 03:28 AM
#11
TECH SAVANT
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,938
Is the car still dying out at times?
Under what conditions does the generator warning lamp come on--literally randomly or is there any pattern (low rpm, deceleration, ???). Does it come full on. dim, flicker?
Check the voltage between the generator housing and the negative battery post with the engine running and the headlights on--in a perfect world it should be 0.0V, anything more than 0.5V indicates a less than ideal ground path from the battery to the generator.
Then check the voltage between the generator output terminal and the positive battery post--this should also be 0.0V, anything more than 0.5V means there's a bad power path between the generator and battery.
Under what conditions does the generator warning lamp come on--literally randomly or is there any pattern (low rpm, deceleration, ???). Does it come full on. dim, flicker?
Check the voltage between the generator housing and the negative battery post with the engine running and the headlights on--in a perfect world it should be 0.0V, anything more than 0.5V indicates a less than ideal ground path from the battery to the generator.
Then check the voltage between the generator output terminal and the positive battery post--this should also be 0.0V, anything more than 0.5V means there's a bad power path between the generator and battery.
03-11-2011, 10:12 PM
#12
2nd Gear Member
Thread Starter
Join Date: Mar 2011
Location: California
Posts: 170
The car is actually running fine, no problems with performance. The light comes on once in a while at various times. Pretty much randomly. It will stay on from 5-10 minutes at a time. The light is on full every time. When I replaced the fuses and disconnected the battery, the light was off for a whole day and then came back on.
Is the car still dying out at times?
Under what conditions does the generator warning lamp come on--literally randomly or is there any pattern (low rpm, deceleration, ???). Does it come full on. dim, flicker?
Check the voltage between the generator housing and the negative battery post with the engine running and the headlights on--in a perfect world it should be 0.0V, anything more than 0.5V indicates a less than ideal ground path from the battery to the generator.
Then check the voltage between the generator output terminal and the positive battery post--this should also be 0.0V, anything more than 0.5V means there's a bad power path between the generator and battery.
Under what conditions does the generator warning lamp come on--literally randomly or is there any pattern (low rpm, deceleration, ???). Does it come full on. dim, flicker?
Check the voltage between the generator housing and the negative battery post with the engine running and the headlights on--in a perfect world it should be 0.0V, anything more than 0.5V indicates a less than ideal ground path from the battery to the generator.
Then check the voltage between the generator output terminal and the positive battery post--this should also be 0.0V, anything more than 0.5V means there's a bad power path between the generator and battery.
03-12-2011, 10:57 AM
#13
TECH SAVANT
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,938
There are a number of tests for the charge indicator lamp listed in the info I posted previously. You could also monitor the system voltage with a DMM (the cigar lighter socket is a good source) and see if it changes when the indicator is on--this will indicate if there is a voltage issue and the lamp is operating properly, or not...
05-01-2012, 07:01 PM
#15
re and re intake manifold
must be to do with motor flex cause cause heatercorebroke and plastic spigit broke off very back of intake manifold.. manifold done ...hmmm how to fix without pulling the whole interior out???my buddy said clean with stainless steel wire brush then silver solder it..no wont work the car will burn so cleaned it and jb welded it hopefully it holds..then used sprayfoam so there is no movement ..that was a1 day job ..ford wanted $4000
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