Question about 1999 Pontiac Bonneville

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After cars reaches a speed of 50 mph plus, and I go up a slight hill it seem like it is cutting out, I think it is a transmission problem, but I am mechanial inept, car is 1999 pontiac bonneville se, any thought please

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If its cutting out then most liley will have nothing to do with the transmission, sonds like an air fault to me, perhaps the air mass sensor, this is the most common fault on any modern car so I would certainly take a look at that first, also ensure you have no air leaks in the pipe work as again this would also do that.

Hope that helps
Regards
Dan

Posted on Nov 08, 2010

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Posted on Jan 02, 2017

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Hello
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