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PostPosted: Tue Mar 15, 2016 12:05 pm 
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Joined: Tue Mar 15, 2016 11:56 am
Posts: 4
Year and Trim: Pontiac Bonneville 89
My 89 Bonneville sit for about 6 months.
About a week ago I got it back on the road and it ran fine for 4 days.
When i came outta work it wouldn't crank.. Tried again it ran for 5 seconds and cut off.
Finally I got it started,went and got Starter,Alternator,Battery checked.. All Good..
It has a New Fuel Pump as well...
This past Saturday i took it to get it looked at and the guy said he drove it around.. Crank it and cut it off plenty of times and
it was fine..
Well two days later,it was doing the same thing.
Sometimes it sputters when i drive,especially when i slow down.
Idk if its bad gas,dirty fuel filter or a sensor.. Anyone have any ideas?
When its running it runs Great but sometimes it just wont crank.
Last time was yesterday.. I drove it to the store on my Break,it was fine.. When i came out an Hour later it would crank..
I lifted the hood.. Then 5 minutes later it crank up..
Please Help if yall can..
Thanks


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PostPosted: Tue Mar 15, 2016 12:15 pm 
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Joined: Mon May 19, 2008 7:01 pm
Posts: 16658
Location: Central Illinois
Year and Trim: 1992 SSE
2009 G8 GT
I would try changing the fuel filter and filling up with fresh gas, maybe running some ISO-Heat in the tank. When a coworker had bad fuel (so bad that it wouldn't start at the gas pump at all), it started and ran at idle for a couple minutes after I added a bottle of ISO-Heat.

It could also be a cam or crank position sensor. They can get temperamental without throwing codes sometimes.

Or possibly the fuel pressure regulator. After it has run, pull the vacuum line off it and smell for gas in it. It should not smell.

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WHITE WHINE - IT'S INTOXICATING. 1992 SSE Supercharged 236.26 ci (.040 Over)
15.090 at 90.2 MPH on old engine w/ slipping trans & melted O2 sensor - Gen 3 M62 and matching TB, Gen 2 Pully, Zillamotorsports Ported LIM, YT 1.72 Roller Rockers, SII FPR & Injectors, Easy Performance Gen 3 Air/Fuel Calibrator, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers and 10" Subs, 1300 watts, 140 amp Alternator, Ricepipe CAI w/ heatshield, Pilot Angel Eye Foglights, Clear Corners, '02 17" Chrome Bent 5's, Magnaflow F-Body Muffler and Hi-flo Cat, McCoy Motorsports Ceramic Coated Ported Exhaust Manifolds, Fan Override, PowerSlot Slotted Rotors.
2009 G8 GT - Sport Red Metallic, loaded, SOLO Axlebacks, Rotofab Intake, Tuned, autodim Trailblazer mirror, removed intake manifold cover, HSV GTS triple gauge pod, two tone red-hot shifter and HSV SuperSport steering wheel, GXP rear sway bar and diffuser


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PostPosted: Tue Mar 15, 2016 12:18 pm 
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Joined: Tue Mar 15, 2016 11:56 am
Posts: 4
Year and Trim: Pontiac Bonneville 89
Ok Thanks!! Will Try all that you mentioned..


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