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1984 Buick Grand National Wont Start

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Bergjo91

New Member
Joined
Sep 19, 2024
Messages
13
I have a 1984 Buick Grand National that I have replaced and done quiet a bit to since I got it under the hood. Recently did injectors, chip, spark plugs (again), valve cover gaskets, and intake gasket. As well as new fuel filter and sending unit. Put all back together and got the car to start and run. So I thought win. Well it will start run, but when put into gear and try and give it throttle it stumbles over itself and pukes out. Put it back into park and it will idle just fine.

Next thing I thought I should do to help the start as its never like to start great was replace the Engine coil module, I got the conversion kit to go to the 86/87 Coil, as well as updated the crank sensor followed directions on how to do all of that. Now cant get car to start at all. Had to cut a wire when did the conversion kit and believe its getting the power electrically that it needs. But wondering if anyone can tell me how and what I can check to make sure I am getting power to everything I need. As I have had that car back fire twice on me I assume after I flooded it, sounds like a gun shot went off in my garage.

I appreciate any help! I am to the point of my mechanical abilities and going to start looking for a mechanic that could take it on just to get it running like its suppose to.

Located in North Dakota.
 
Edit to the above posted I replace the ignition control module not the engine control.
 
Well, a volt meter is your friend and learning how to use on to check for voltage and the ohm(resistance) for continuity is essential in trouble shooting a system. Is this a skill you posses or are willing to learn? I like use jumper wires for stuff to put power to things to make sure they are getting power and operate, then you can make sure that power is being applied when called for during operation and know it isn't the component that is bad.

For these installations were there wiring diagrams included? something that shows how the electrical will travel?
 
Well, a volt meter is your friend and learning how to use on to check for voltage and the ohm(resistance) for continuity is essential in trouble shooting a system. Is this a skill you posses or are willing to learn? I like use jumper wires for stuff to put power to things to make sure they are getting power and operate, then you can make sure that power is being applied when called for during operation and know it isn't the component that is bad.

For these installations were there wiring diagrams included? something that shows how the electrical will travel?
Yep I am willing to learn, and have a volt meter, I set it to DC and checked the solid pink wire I put in place of the resistance wire that was taken out when I put in the conversion kit for the ignition control module and I am getting 12v there when I have the key in the on position. I am wondering if its the crank sensor that came with the kit, watched a youtube video of a guy replacing that and used the feeler gage to set the distance.
 
yes on the check the crank sensor clearance on both sides of all three 'tangs' of the crankshaft piece to avoid any cause damage by hitting the sensor
 
unplug sensor and put you meter across the two connections on the sensor and spin the engine over to see if the sensor is "seeing" the tangs and closing(shorting) as they go by.
 
Haven't worked on a hotair... However, is the crank sensor mounted with the wrong slot over the wheel?
 
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