Question about 1989 Buick Century
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Posted on Jan 02, 2017
SOURCE: i have a 1990 buick
Have you checked the ignition fuse(s) in the fuse box under the hood(should be 30 amp fuses)?
Start there, (maybe on the passenger side on the firewall, or on the drivers side (side or front of compartment). Sorry I can't find a diagram, but there should be a diagram under the lid. Then the ECM, Battery Power (if applicable). And main relay. Start with those. Also I think it might be worth checking fuses 1,2 and maybe 4 in the passenger compartment box.
Hope this helps you!
Posted on Nov 01, 2010
check fuel pressure are fuel rail? Should be 40-47 psi. Also check filter at rear frame rail near RR tire, pull vacuum line off fuel pressure regulator at intake mainfold. Should have vac. and be dry, no gas at fitting.
Posted on Aug 22, 2011
ok ! did you mean its got spark but does not start. if spark but does not start. check to see if its getting fuel to engine. remove air hose from throttle body and spray some starting fluid in throttle body, open throttle plate and spray some in. if car starts then stops, its a fuel problem. if no spark check the harmonic balancer on engine to see if its loose, the 3.8 engine have a crank position sensor that runs off the balancer. the rubber starts wearing out and the balancer start flopping around. and the timing gets massed up. good-day ! type in on pc browser ignition switch symtoms, and a list of things will come up. for a ignition switch controls over 50% of voltage for vehicle. good-day !
Posted on Oct 29, 2011
did u check the engine control fuse ? its located in the engine compartment fuse box i do belive its a 30 ! if tha fuse is blown then u will get no fire ! it took me awhile to figure out this on my own and i did all the same things and all it was caused by the coil shorting out or flat out hit the exspration date
Posted on Mar 02, 2013
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