I've got a 2006 GMC Sierra Denali pickup, 13.5k miles. I always run an AC/DELCO filter, never had any trouble before now. Here is what happened: I get in the truck and start it and ZERO oil pressure - gauge at 0, bells and "LOW OIL PRESSURE" signals going off - the whole thing. I immediately shut the engine off and get out. Look underneath, no oil spill, check oil - right where it should be. Start it up again, same thing- no pressure. But I let it run because I do not hear any tapping noises. I rev the engine and them I get full pressure. So, everytime I start it, no pressure - rev engine you get pressure. I'm thinking bad oil pressure sensor, but also thinking of a bad oil filter. I hook up my Tech 2 and check all the parameters etc and see no problems. Now I really think there's something up with the oil filter - like maybe a bad valve or something. So, next morning, start up the truck, no oil pressure, rev it, get pressure and off to work I go. I leave work, same routine. I stop by Autozone, get a new filter. I get home and swap the filter and problem solved. For 2 days now - no more oil pressure issues.
NOW - what do you guys think may have happened here? I am convinced that this was oil filter related - and I am a little dissapointed that an AC filter let me down after I've used them for years in all my cars. Just for some more info - the truck has 3,800 miles on a Mobil 1 oil change in a truck with less than 14k miles so I doubt it was clogged.
Any insight? Thanks everyone! I am not using Delco anymore..
NOW - what do you guys think may have happened here? I am convinced that this was oil filter related - and I am a little dissapointed that an AC filter let me down after I've used them for years in all my cars. Just for some more info - the truck has 3,800 miles on a Mobil 1 oil change in a truck with less than 14k miles so I doubt it was clogged.
Any insight? Thanks everyone! I am not using Delco anymore..