On start up the engine is rough and smoke bellows up from intake? on 2000 Buick LeSabre

2000 buick lesabre 3800

by in East Peoria, IL on September 12, 2013
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1 answer 1 comment
ANSWER by , September 12, 2013
where is the smoke coming from on the intake and what color is it you could have a blown intake gskt or a cracked intake it sounds odd to me because the 3800 does have too many engine problems
COMMENT by , September 15, 2013
Thanks for answering... The smoke comes out from under the plastic 3800 cover (white) hard to start when this happens but this don't always happen sometimes starts fine with no problems. when the problem happens the car will run great once started. we noticed that sometimes we can hear the fuel pump run but other times we don't hear it would a bad fuel pump possibly cause this? Its almost like the old carbs that would pop though with to much fuel and pop car runs exceptional once started.