How to diagnose battery Guage on a GMC Yukon?

How to diagnose battery Guage on a GMC Yukon?

The engine computer (ECM/PCM) will ramp up engine/generator speed in small steps so engine speed variations are not noticeable to the driver. For diagnosis of the battery and/or the generator, refer to the appropriate Service Information (SI) or Corporate Bulletin Number 05-06-03-002C.

Why are the lights dimming on my GMC Yukon?

Dimming of the lights is an indication that current is being pulled from the battery. If the battery is in a low state-of-charge (discharged condition), the driver will notice a more pronounced dimming than a vehicle with a fully charged battery. 2.

What causes a bad gas gauge on a Chevy truck?

A poor ground or loose connection to a gas gauge is just as likely to cause problems as loose or dirty battery cables assuredly will with your starting system.

When to supplement the battery in a GMC Yukon?

With enough electrical loads “ON”, it is easy to exceed the generator current (amperage) output when the engine is at an idle of 600-700 RPM. This is a normal condition. The battery supplements for short periods of time.

The engine computer (ECM/PCM) will ramp up engine/generator speed in small steps so engine speed variations are not noticeable to the driver. For diagnosis of the battery and/or the generator, refer to the appropriate Service Information (SI) or Corporate Bulletin Number 05-06-03-002C.

Dimming of the lights is an indication that current is being pulled from the battery. If the battery is in a low state-of-charge (discharged condition), the driver will notice a more pronounced dimming than a vehicle with a fully charged battery. 2.

Why does my GMC Yukon have low voltage?

With the engine running the gauge should measure the output of your alternator. The low voltage may be indicative of issues with your alternator. If you have one of those that shows the voltage without the engine running, then check your gauge for a bad resistor on the dash panel.

With enough electrical loads “ON”, it is easy to exceed the generator current (amperage) output when the engine is at an idle of 600-700 RPM. This is a normal condition. The battery supplements for short periods of time.

What causes the voltmeter on a GMC Yukon to fluctuate?

This will cause the voltmeter to fluctuate between 12 and 14 volts as opposed to non-regulated systems that usually maintain a more consistent reading of 14 volts. This fluctuation with the RVC system is normal system operation and NO repairs should be attempted. 38 people found this helpful.

How many volts does a GMC Yukon have?

This is common on large GM Vehicles: Some customers may comment that the voltmeter is fluctuating between 12 and 14 volts on their full size pickup or utility vehicle. Starting with the 2005 model year, light duty full size pickups and utilities are equipped with a new Regulated Voltage Control (RVC) system.

What causes the idle voltage on a GMC Yukon?

Items that affect the vehicle’s electrical system current and voltage at idle are the number of electrical loads being used, including add-on accessories, and extended idle times.

With the engine running the gauge should measure the output of your alternator. The low voltage may be indicative of issues with your alternator. If you have one of those that shows the voltage without the engine running, then check your gauge for a bad resistor on the dash panel.

What should I do about my 1999 GMC Yukon?

The drive train has performed flawless. Early repairs were leaky heater hose eng. block nipple; Exhaust gaskets RR; tightened the oil filter/cooler engine mounting. The original brakes are undersized and I replaced the front rotors with cryogenic cooled/hardened

What are the features of a 1998 GMC Yukon?

The 1998 GMC Yukon! Ensuring composure no matter the driving circumstances! All of the following features are included: front and rear reading lights, cruise control, and air conditioning. It features four-wheel drive capabilities, a durable automatic transmission, and a powerful 8 cylinder engine.

The drive train has performed flawless. Early repairs were leaky heater hose eng. block nipple; Exhaust gaskets RR; tightened the oil filter/cooler engine mounting. The original brakes are undersized and I replaced the front rotors with cryogenic cooled/hardened

How much does a 1999 GMC Yukon Denali cost?

Monthly Estimate based on a 4.4% rate for 60 months, $4,160 vehicle price, $0 down payment, $0 trade-in, $0 sales tax. From communication with our initial interest through to the sale of the vehicle, Matt at Platte River Auto was just superb.

How many miles does a GMC Yukon have?

I bought my Yukon New and have owned it for 10 years now with 165,000 Miles. It was purchased for the four wheel drive. The drive train has performed flawless. Early repairs were leaky heater hose eng. block nipple; Exhaust gaskets RR; tightened the oil filter/cooler engine mounting.

The 1998 GMC Yukon! Ensuring composure no matter the driving circumstances! All of the following features are included: front and rear reading lights, cruise control, and air conditioning. It features four-wheel drive capabilities, a durable automatic transmission, and a powerful 8 cylinder engine.

What should battery voltage be on GM Truck?

It appears the needle fluctuates between 12 and 15 or volts. The battery gauges on most vehicles I have owned stays around 13 to 14 volts and doesn’t move much unless something that consumes a lot of power is turned on. Mine does this with nothing additional running on the truck other than the radio and a/c.