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Voltage drop 94 GMC 1500 5.7 engine Starts fine, idles like new, while driving after 10 feet in forward or reverse, or sometimes not for half of a mile...the voltage drops to 8 - 9volts and the truck stalls. Acts like a dead short. Replaced alternator as the old one was not charging. (perhaps this condition blew a diode or something in the old one) I can step on brake lights etc in park and it will not do it. Wonder if it is the shift solenoid in the tranny as I have to shift it like a manual to get into 2nd gear. It acts like a dead short but wouldn't a fuse blow? I've been researching and going to clean all grounds next, once it warms up outside. Checked codes, only shows the engine knocking code which happens as it stalls on low voltage.

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6ya6ya
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Posted on Jan 02, 2017

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  • 341 Answers

SOURCE: 2002 Dodge Ram 1500 ,4.7L V-8 Battery is not CHarging

A lot of Chrysler products have the voltage regulator in the computer. I would check the charging system wiring first for poor connections and if nothing else is found there is nothing else for you to do but change it.

Posted on Dec 09, 2008

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Blackberry_U
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SOURCE: tranny clunks when shifting gears

Your gears may be going. I would get it checked out.

Posted on Jun 15, 2009

  • 1 Answer

SOURCE: 93 chevy 1500 4wd trans. shift problems.

Also check your detent cable if is not adjusted correctly it will not shift properly

Posted on Aug 16, 2009

  • 84 Answers

SOURCE: Chugs, acts like it's not getting gas once warmed up. Idle's fine

This problem can be several things. When your engine is cold, your computer is in a "closed loop" and just pretty much keeps the engine running until warmed up. After reaching operation temperature, the computer starts reading all the sensors. If one sensor is not connected or is defective, you will experience performance problems. Most of the time this will turn on the check engine light, but not always. Second is the fuel pump. This too will cause erratic engine problems.

Posted on Feb 11, 2010

vetteman3002
  • 2299 Answers

SOURCE: I am having a voltage issue with my 2003 gmc

No. It is a bad alternator. When they test the alternator they turn it at faster rpm. When it turns at faster rpm it is charging fine. What the problem is the voltage regulator in the alternator is going bad. When you turn your blinker on I bet the voltage shows on the gauge. Moves up and down with the blinker.

Posted on Oct 26, 2010

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