1996 Bonneville getting 16 mpg and running rough at start up - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 01-07-2008, 10:57 PM   #1
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Default 1996 Bonneville getting 16 mpg and running rough at start up

I have a 1996 Bonneville SE that is only getting 16 miles per gallon! When its cold it will start then die instantly unless I am giving it throttle and rev it up until engine runs smooth (shakes and sounds like its missing or bogging right away). I used a diagnostic tester and it says that it is the crank sensor but I was wondering if it could be another sensor messing up that sensor?

Anyone have similar problems or any Ideas?

thanks,
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Old 01-09-2008, 11:00 PM   #2
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TTT! Any Ideas?
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Old 01-10-2008, 02:49 AM   #3
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MAF could be dirty/bad. I may recommend cleaning TB to rule that out. There'* an article in techinfo on everything you want to be sure to get.
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Old 01-10-2008, 03:41 PM   #4
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Quote:
Originally Posted by putertopia
MAF could be dirty/bad. I may recommend cleaning TB to rule that out. There'* an article in techinfo on everything you want to be sure to get.
I am going to sound like an idiot but what does MAF and TB stand for?
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Old 01-10-2008, 03:50 PM   #5
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MAF = Mass Air Flow
TB = Throttle Body


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Old 01-10-2008, 11:28 PM   #6
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Quote:
Originally Posted by jbmark33
MAF = Mass Air Flow
TB = Throttle Body


Thanks for the suggestions, I will check them out and let you know what I find.
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