charging issue ?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

lt704 · 11-19-2010, 02:04 PM

Hi Folks, My 2003 Chevy Silverado starting giving me problems the other night. It was a bad alternator. The truck kept dying. I put in a new alt. because the old one was not charging. The truck runs fine ( not dying ). The problem I am having as I drive the the heater blow almost dies when i hit the brakes but runs normal as i drive with increased speeds, the same is tru with my powere windows. I checked my battery, It is good and also good underload. My alt is reading 14+ volts when truck is running ( with battery/alt tester ) My truck has the 4.8 engine and a 105 amp. any ideas??? thank You Russ

rwolf9653 · 11-22-2010, 01:11 PM

I would check the cables leading from the battery and to the starter. It sounds like they are connected, but not allowing enough electricity to flow freely through them. This could happen from rust and corrosion increasing the resistance through the wires.

**Warrens69GMC** · 11-23-2010, 01:45 PM

Check your idler and your tensioner pulleys, if one is starting to bind you will have the same symptons.

lt704 · 11-24-2010, 03:38 PM

I appreciate the information I will check theese out, thank you Russ

lt704 · 11-28-2010, 08:31 PM

Hi folks, The problem has been fixed. It was indeed the battery to starter cable. It was loose and had junk on it. thanks for all the help

11-19-2010, 02:04 PM	#1
lt704 Registered User Join Date: Jun 2009 Location: Berkley, Massachusetts Posts: 235	charging issue ?? Hi Folks, My 2003 Chevy Silverado starting giving me problems the other night. It was a bad alternator. The truck kept dying. I put in a new alt. because the old one was not charging. The truck runs fine ( not dying ). The problem I am having as I drive the the heater blow almost dies when i hit the brakes but runs normal as i drive with increased speeds, the same is tru with my powere windows. I checked my battery, It is good and also good underload. My alt is reading 14+ volts when truck is running ( with battery/alt tester ) My truck has the 4.8 engine and a 105 amp. any ideas??? thank You Russ

11-22-2010, 01:11 PM	#2
rwolf9653 more ideas than money Join Date: Dec 2008 Location: spring grove, pa Posts: 1,068	Re: charging issue ?? I would check the cables leading from the battery and to the starter. It sounds like they are connected, but not allowing enough electricity to flow freely through them. This could happen from rust and corrosion increasing the resistance through the wires. __________________ Randy 1948 Chevy 3100 5 window 1966 Chevy C30 Dually 1967 Chevy K10 1972 Chevy K20 1972 Chevy C10 1972 Chevy K5 Blazer 1987 Chevy V10 2003 Chevy Suburban

11-23-2010, 01:45 PM	#3
Warrens69GMC Registered User Join Date: Jan 2003 Location: Safford,AZ Posts: 3,626	Re: charging issue ?? Check your idler and your tensioner pulleys, if one is starting to bind you will have the same symptons. __________________ 1969 307, t350 1950 Chevy Wagon 1978 Big 10 1967 C10, 250,3-OTT

11-24-2010, 03:38 PM	#4
lt704 Registered User Join Date: Jun 2009 Location: Berkley, Massachusetts Posts: 235	Re: charging issue ?? I appreciate the information I will check theese out, thank you Russ

11-28-2010, 08:31 PM	#5
lt704 Registered User Join Date: Jun 2009 Location: Berkley, Massachusetts Posts: 235	Re: charging issue ?? Hi folks, The problem has been fixed. It was indeed the battery to starter cable. It was loose and had junk on it. thanks for all the help



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