Question about OEM 1998 GMC K1500 Pickup Radio / CD Player wma88845p AM-mono-FM-stereo-cassette Automatic tone control opt UL0/UP0 Houston, Texas

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Preferred voltage at battery when vehicle is running 98 gmc k1500 5.7 liter

What should voltage be at the battery when engine is running

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You should be getting somewhere between 11 to 14 volts depending on how many things your truck is running that take power.

Posted on Jul 28, 2013


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What voltage should be at coil for it to fire engine and how to check. Chevy v6 pickup 98 model

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I was driving down the freeway at the check stablitrac light flashed, along with the warning light, and the reduced engine light. The first time it just shut down - with the battery just dead. The l

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Hi, I am working on a 1992 GMC Suburban's alternator. I replaced a bad alternator and the new unit went bad within days. I replaced the alternator again just yesterday and am noticing problems. The...

Most alternators put out around 14.7 volts. Yours is alittle high. You might check it with another meter to be sure. Voltage does drop when the engine is running and has a load on it. ie lights, A/C, Blower. radio. As long as it stays above 12 volts it is working. I have bought parts before that last only days, so I wouldn't worry about the first alternator. If the voltage drop continues (say to 8 volts?), Then I would check wires (loose connections). The first would be the ignition wire going to the starter. On your year the battery power went to the starter and most of the ignition power ran from there. There could be several wires from the starter hot side. ( sorry I can't be exact, I haven't worked on one for awhile). Also check the grounds, battery to engine, engine to body, battery to body.

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2005 GMC Canyon - service engine light came on - then the battery light came on - took it to the dealer. The battery was replaced and the service engine light went out. The truck still had low rpms at...

Sounds as if your alternator is not charging the battery. The battery is the main source of your engine "spark". the alternator is across the leads to supply charging to bring your battery up to the 13.2 volts that is available. Of course the alternator will run your auto if it is producing voltage, i.e. jump start, or push start. It takes a certain voltage to run your computer which monitors the battery and if that voltage is not sufficent to produce the timed spark, (battery runs down), then the vehicle will not fire on all cylindars.

Jan 22, 2011 | 2005 GMC Canyon

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1 Answer

98 ford Exped. oil and engine light come on but go off on restart

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but theres also the problem of alternator is getting ready to give only
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