Question about 1986 Dodge D150

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I have a 1986 Dodge D100 pick up the battery as I drive will drain down to about 9 volts I have replaced the following: Alternater, Voltage Regulator, distribuitor cap and wires, battery, ingnition realy, and the computer I still have the problem it seams as though something between the battery and the alternator please help

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Battery cable needs replaced

Posted on Jan 03, 2011

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97 dodge caravan 3.3L alternater


sounds like a alternater problem. with car off battery voltage should be at least 12.6 or better. less than 12 volts battery is bad. when running at battery, voltage should be at least 13.5 to 14.2 or better. take negative battery cable off while running, if car dies its the alternater. Good-Day! you can take alt, to any auto parts store to get it tested. advance,auto zone, etc.

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Why does my truck speed while driving


You don't mention it but I think you should have a carburetor on that motor. Do a fuel flow check to make sure you are getting enough fuel at higher rpms. check the float bowl for the carburetor to make sure it is not partially blocked. But I will say it sounds like you could have low compression. I would have the compression check and also do a leak down check on each cylinder. Also have your antifreeze checked for hydrocarbon in case you have a leaking head gasket. Also make sure the oil is uncontaminated as well. If all

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My battery keeps dieing while running. just changed the alternater three weeks ago.


Hi.

Make sure that you also replaced the battery. Battery elements may be shorted inside. That will result in battery draining even if the alternator is working.

If you have already replaced the battery check power across battery terminals with engine on and revving above idle.You should read voltage in a range of 13.5/14.4 volts when engine is revving at about 2K rpm.

If the voltage is still wrong after replacing alternator and battery check the voltage regulator connected to the alternator. Here the part.

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I need a new battery for my 1986 Oldsmobile ninety-eight regancy sedan. fully loaded. what type of battery would i need?


Attributes Battery BCI # : 75
Battery CA @ 32 Degrees F : 775
Battery CCA @ 0 Degrees F : 630
Battery Height : 7 1/4"
Battery Length : 9 3/4"
Battery Posts Type : Side Post
Battery Reserve Capacity : 90
Battery Voltage : 12 volt
Battery Weight : 33 lbs.
Battery Width : 7"
Wet or Dry : Wet
A lead acid battery with the fallowing specs
group 75



Attributes Battery BCI # : 75
Battery CA @ 32 Degrees F : 775
Battery CCA @ 0 Degrees F : 630
Battery Height : 7 1/4"
Battery Length : 9 3/4"
Battery Posts Type : Side Post
Battery Reserve Capacity : 90
Battery Voltage : 12 volt
Battery Weight : 33 lbs.
Battery Width : 7"
Wet or Dry : Wet
Attributes Battery BCI # : 75
Battery CA @ 32 Degrees F : 775
Battery CCA @ 0 Degrees F : 630
Battery Height : 7 1/4"
Battery Length : 9 3/4"
Battery Posts Type : Side Post
Battery Reserve Capacity : 90
Battery Voltage : 12 volt
Battery Weight : 33 lbs.
Battery Width : 7"
Wet or Dry : Wet
Battery BCI # : 75
Battery CA @ 32 Degrees F : 775
Battery CCA @ 0 Degrees F : 630
Battery Height : 7 1/4"
Battery Length : 9 3/4"
Battery Posts Type : Side Post
Battery Reserve Capacity : 90
Battery Voltage : 12 volt
Battery Weight : 33 lbs.
Battery Width : 7"
Wet or Dry : Wet

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1 Answer

My alternater will be fine then it drops off to 9 volts. I have had my alternater bench checked and they say it's good so i replaced my battery. all cables and connections are good but it only works...


If it tested good during a bench test, and the problem was intermittent, the test was not done long enough to simulate the problem with voltage output. Replace the alternator.

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Put new battery in votls are droping down to 10.3 if it was the alternater then why wouldnt it drain complety out


If new battery drops to 10.3 Volts on the dash monitor battery voltage, then the alternator is probably not charging it enough to maintain 13.2 to 14.2 volts when the car is running.

If it's the alternator, eventually all systems will shut down as it runs.

10.3 V is really low for a new battery.

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I am afraid it might be the voltage regulator for the alternator,and it is in the computer,the computer has to be replaced to repair the problem.Is the battery getting any voltage from the alternator?With the engine running,headlights on,and on high blower motor on the ac,what is the voltage at the battery?Let me know,it should read from 13.65 volts,to 14.25 volts at the battery.Let me know,so I can try and help.

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