amp gauge at start up reads low rises after a few minutes

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97 F250 7.3, 85K, at start up amp gauge registers 1/4 after a few minutes it goes to just above 1/2, replaced batteries & alternator, symptom persists..what's wrong ?

sq_deal in Ypsilanti MI

Jan 3, 2016

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What are the best Ford repair shops?

RepairPal Certified shops can diagnose and repair your 1997 Ford F-250. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

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What is your question?

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amp gauge at start up reads low rises after a few minutes

What is your question?

97 F250 7.3, 85K, at start up amp gauge registers 1/4 after a few minutes it goes to just above 1/2, replaced batteries & alternator, symptom persists..what's wrong ?

sq_deal in Ypsilanti MI

Jan 3, 2016

1 Reply

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pushrodon Jan 3, 2016

Test 'actual' voltage @ battery terminals with a volt meter upon startup ... IF voltage output recovers in a few *seconds* .... it isn't likely to be a problem as the alternator must replenish what was drawn from batteries during glow plug warm up - plus cranking the engine... which is amplified in COLD weather!

sq_dealon Jan 4, 2016

Thank you "Pushrod" yer probably right, been with this truck for 19 years and i'm probably overly concerned..I notice the little things it "hasn't done before"...the "recovery" is actually a few minutes (?). I'm old & get sticker shock easy new ones are ridiculous & just don't look as good as mine. If a man takes care of his truck, his dog & a part time woman, life is good. thank you again Pushrod

pushrodon Jan 4, 2016

LOL... You got it figured out down to a "T"... I agree 100%... As long as this volt meter deal doesn't get worse and truck cranks ok, I wouldn't pay it much mind.... (It's been awhile but I paid less for my HOUSE than some of these trucks cost today!) Have a good one...

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Popular Answer

What are the best Ford repair shops?

RepairPal Certified shops can diagnose and repair your 1997 Ford F-250. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.