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1998 Buick LeSabre Questions

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There's a cylinder 3 misfire with a knock in the plenum surrounding cylinder 3. Lower speeds and lower torque cause knocking to lower as well. If unhook the #3 plug, the knocking stops completely
Help how to fixes it 1998 buick LeSabre
What seems to make the problem better or worse? Start but die
How long have you had this problem? 2 months
Have replaced both front rotors and pads and bearings
The water pump hose is expanding looks as if its going to bust when car is running.
I need to know which fuse in maxifuse/relay center is for starter relay and/or starter.
How do I get the bottom dash off so I can drop the steering column on a 98 Buick LeSabre
trun signail stays on ,on the left side and will not blink
Stalked a couple times
Car started fine went 3 miles stopped missed before shut down came back just spins changed coil pack now getting more firing it seems tryed either no go why
Why has my heater stopped working blows cold but before it started that my vets weren't blowing out anything it was only working threw the defrost and floor t smelled a lil like radiator u no the maple syrup smell and temp usually on 200 but went up half ways which is not normal can up lease give me an idea of what's the problem thank u
I have tried to drive it and it drive ok.
it Runs rough but still switches gears
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