1999 HOE issue

[chitown906]

I've been noticing that while driving at random times, my tahoe will have a "check gauges" light pop on shortly after that, I can look down at the Oil Pressure and it will spike to 0 than shortly after go back up to normal. While doing so the truck starts to run weird and will oddly go away. The oil is good just above full , maybe 500miles from an oil change but even though I used synthetic so i have a grace period..

My question is what could it be ? I've ran a computer on it and all im getting was a prior check engine code for a Random cylinder 3 missfire which has not returned since the last code clear..

Thoughts?

Chi_Town

 

[1999hoe]

Listen you gotta problem with me just say no need to post over the boards lol ....as for your problem no.clue bro

 

[chitown906]

Imfao hahahahahahahahahahahahahah

 

[chitown906]

No help?

 

[Ceejkay]

you posted this in performance, general would have been a little better place to post.. but i would start by looking at the sensor and chase the wire... it could be broke somewhere down the line..

 

[joyride]

So your SES light comes on when your oil pressure gauge falls down to 0 while driving?

How long has it been since the light came back? Are you sure it's a prior code or one that you're dealing with now? Does your truck drive fine? Do you hear any lifter chatter, or knocking sounds?

If you have a reoccurring #3 misfire, what does that plug and wire look like? Could be also be a slightly clogged fuel injector for that cylinder too.