1998 yukon Mystery p0300 and rough idle still

[OilBurner2003]

If the gears were real knife edged, that’d be a good indicator. Hard to say, maybe @exp500 or @OR VietVet would be able to give a better opinion.

I will wait for opinions, I can take more photos if needed of course.

 

[OR VietVet]

1. Install new gasket on two dry surfaces.
2. If the teeth on that gear look the same all the way around, it is ok.
3. Do you have any oil up inside the distributor? If so, replace distributor.
4. Now is time to do cap and rotor if old enough and have any deposits at firing tips.
5. Gotta check something and will respond back.
6. Cant remember and not gonna go look, do the cam sensor if not done yet.
7. If feel like it and just want to be ****, do the drive gear if dont need the new dist.
8. Gear is easy. R&R roll pin.
9. Check check check all related wiring and connectors and inspect coil for any cracks and discoloration.

 

[OilBurner2003]

1. Install new gasket on two dry surfaces.
2. If the teeth on that gear look the same all the way around, it is ok.
3. Do you have any oil up inside the distributor? If so, replace distributor.
4. Now is time to do cap and rotor if old enough and have any deposits at firing tips.
5. Gotta check something and will respond back.

I will try to check if there’s oil.

 

[OR VietVet]

ANY OIL IN THERE, REPLACE IT.

 

[OilBurner2003]

ANY OIL IN THERE, REPLACE IT.

I’m having a hard time trying to figure out where to look. Would I have to take off the rotor to see?

 

[OR VietVet]

I’m having a hard time trying to figure out where to look. Would I have to take off the rotor to see?

Remove rotor and cam sensor and look at center shaft plate area. Dry good, wet bad.

 

[OilBurner2003]

Remove rotor and cam sensor and look at center shaft plate area. Dry good, wet bad.

Roger, will do that now.

 

[OR VietVet]

To remove sensor, turn rotor plate to line the notch up for clearance

 

[east302]

While you’re there, are any of the cap mounting tabs cracked or broken (yet)?

Looks like the factory original plastic distributor.

 

[OilBurner2003]

Looks dry, not seeing any oil. Is the shaft supposed the have play? That and some slightly discolored teeth is all I’ve found so far.

To remove sensor, turn rotor plate to line the notch up for clearance