Question about 1985 Buick Century
I recently bought a 1985 Buick century 3.3 liter >i have changed every thing except the fuel pump >its on the road certified >the problem i am having >it doesnt idle properly >idling fine when in the drive way But at times it hesitates>when i put it in gear and when its idling did a compression test every thing was good i changed all the plugs ect and pcv valve wires ect >the engine light was on when i bought it so i changed the ox sensor >i disconnected the battery and the light went out >after i put the battery cables back on the battery .I put some complete fuel cleaner and changed the fuel filter >it still runs like its missing >so i am thinking it might be the fuel pump >i also was wondering if i could get a diagram of the vacum lines >because some of them were off >and i put them back on where i thought they should be >it seems like since i changed the ox sensor it has been running poorly >but it may also be because i washed the engine with engine shampoo>the motor has 163 kms on it >i also disconnected the torque converter to see if it made a difference but no success and re hocked it back up and i havent put it on a computer scanner yet >please help i would appreciate it .i restored the vehicle completely >its a two door and was bought off an old couple who had it since it was new
Posted on Jul 07, 2008
Testimonial: "Fixed the problem myself ...it turned out to be .At night i sprayed the plug wires with water and noticed a electrical jump ...changed the new wires again ...fixed the problem ...i returned all the new wires i previously installed ...and company gave me new ones too install .Runs like a dream come true ."
Do a balance test on the injectors. Remove one injector plug one at a time. Each time you remove one you should have a miss. All 6 should have the same miss. You could have an injector going bad.
Posted on Jun 30, 2008
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Posted on Jan 02, 2017
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