Gas In Oil

[jnpeak]

Have a '93 Sonoma with 237k on it. Has the 4.3 Z with the TBI. For a while I've been getting fuel in my oil. I know on the Vortec 4.3 this is an issue with leaks under the plenum, but I don't have this on the truck. It runs fine otherwise, starts up fine, idols fine, little rough but not bad. I won't have this truck too much longer but need it to last me for a while yet and would like it to still be running if I'm going to trade it in. Any ideas anyone???? Someone suggested vacuum leak at the Map sensor, I checked it and the lines seem to be fine, looked for other possible vacuum leaks and didn't find any. Plugs, wires, etc for the ignition are new enough I'm not concerned about it being that especially since it still runs fine.

[rlith]

You tbi injectors are dripping too much fuel into the intake and it's bleeding down behind the cylinder walls... Just replace the injector nozzles and you should be ok. You can verify this by looking down the throttlebody... The injectors should be spraying a nice cone... any droplets forming show clogged injectors.

[jnpeak]

Thanks for the tip. Have one problem, don't find a part named injector nozzle, anything else it could be called?

[rlith]

It's simply called the fuel injectors

[jnpeak]

That's what I was figuring, thanks a lot.