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Matt, Engineer
Category: Cadillac
Satisfied Customers: 20357
Experience:  Honors degree in Mechanical Engineering, worked 8 years as a Formula 1 engine engineer.
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Seville 1985 keeps cutting off while driving it has a new battery

Customer Question

Seville 1985 keeps cutting off while driving it has a new battery 18,000 miles?
Submitted: 5 months ago.
Category: Cadillac
Expert:  Matt replied 5 months ago.
Hello I'd 1st check that the alternator is actually charging the battery in the car by taking a battery voltage reading with the engine off then another with the engine running. The 2nd reading should be higher than the 1st and climbing steadily. And also check that the alternator is secure to the engine as this provides the ground for the charging circuit and make sure that the engine / gearbox earth strap is secure and the contacts are clean and bright. if the alternator appears not to be working - take it to a electrical specialist and ask them to test it as sometimes you can replace just the diode pack and this will repair the alternator without requiring replacement
Expert:  Matt replied 5 months ago.
Hido you still need help?Bear in mind that the site takes a deposit from you at the beginning and this is held by the site until you rate my answer at which point the cash is split between the site and the expert. I am only paid for my work on this question if you rate my answer, using the star system at the top of the screen. Please do not forget! Thank you

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