Question about 1989 Buick Century

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Replaced module, plugs + wires. coils and crank sensor and cam sensor , still won't start, on a 1989 buick century 3.3 getting no fire

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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JERRY MCCLOUD

  • 707 Answers

SOURCE: i have a 1990 buick

Hi,
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

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David Ward

  • 227 Answers

SOURCE: 1989 buick century 3.3 V6 has no spark. Changed

the crankshaft sensor has to be adjusted or is will hit and break

Posted on Feb 05, 2011

dano_760

  • 2 Answers

SOURCE: replaced ignition control module on 1994 buick

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

carl

  • 3640 Answers

SOURCE: I haved a 1989 Buick Park Avenue 3.8 engine...I

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

miranda_cook

miranda_cook

  • 13 Answers

SOURCE: i have replace coil ,crank sensor, cam sensor,disturber cap and rotor and still won"t fire

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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1 Answer

1989 buick century station wagon no spark cranks but does not turn over... changed coil pack, Control module, brain,spark plugs wires...any ideas


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what you mean is the car turns over won`t fire/start. you need to find out if you are missing fuel or spark. check for codes. if you have no fuel it maybe a pump or plugged fuel filter. if you have no spark then it could be many things. like crank/cam sensor, poor wiring or connections, poor plugs, wires, ignition coil, even possibly a computer. check the first 3 things and go from there.

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So the problem could be the coil, or the module or pickup in the distributor. The pickup coil in the bottom of the distributor acts as a cam and crank sensor.
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Spark plug in cyl. # 4 is wet and saturated with gasoline . does not seem to be firing . engine is running extremely rough . I cannot see under intake manifold to get to spark plug wire . is removal of...


i`m assuming this is a 4 cylinder motor.no you don`t take the intake off to get to the coils.you can get to the coils from under neath the car.have you checked to see if the plug wire is allowing spark to the plug itself.if its only #4 getting wet then the plug could be defective as the coil that fires #4 also fires #1 cylinder.its rare that the coil will fire one side and not both.(it does happen though).there are 2 coils at the back of the motor that sit on the ignition module.you could have a bad ignition module also.the crank sensor is attached to the ignition module on the motor side and the sensor sits in the motor and if you have to remove the module be careful that you don`t brake the crank sensor when removing the unit a the sensor gets brittle from the heating and cooling of the motor over time,also the sensor seal gets stuck in the bore.

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Ok we changed the ignition module in our 1987 buick century, 2.5 liter and now when you start the car it just dies continuiously but once we get it started it will go but acts like it wants to die at stop...


Did you replace the crank sensor that is bolted to the back of the module? Is it possible that you got two of the plug wires switched. Or maybe 1 of the two coils is bad.

Apr 23, 2010 | 1987 Buick Century

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1987 Buick Century, V6, 2.8L will not start. No


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1 Answer

1992 Buick Century won't start sometimes but has spark in the plugs.


Faulty cam sensor maybe - it controls the injectors. To diagnose, when you get a non-start, spray a V.small squirt of easy-start(ether) and if it runs a little then you have a fuel issue. The spark timing is controlled by the crankshaft sensor so that can be faulty and cause a mistimed spark but usually you'll get a mis-fire in those cases.

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1 Answer

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Hi szdan,check the CPS (cam positioning sensor) or the CSS (crank shaft sensor) good luck

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