gto0188

Scored some factory alloys off same year truck. The tires currently on my steel wheels are less than 1 year old and I'd like to use them. They are 245/75-16. The alloys I got have 265/75-16 tires which are junk. Will there be an issue mounting the 245s on the alloy wheels?

Mehh... have a 86 k10 and 79 w200 both with original steel wheels and both dedicated plow trucks past 15 years. No rust thru on the wheels.

I have owned several older vehicles to include some real clunkers... much older than my 01' Sierra. Never experienced a rotted out wheel. Noticed a slow leak at LF tire. Upon inspection I found it seeping from the inner part of the wheel. All the other wheels aren't far behind. I am glad it started leaking before the wheel completely failed so I can replace all wheels with alloy wheels of same vintage. These wheels are weak and dangerous. Design flaw as I see it since everything collects in that pocket. If you have GM steel wheels GMT800 vintage and live in the rust belt inspect them!

It ended up being the fuel tank pressure sensor. I was barely able to replace it by moving the driveshaft out of the way to get my hands up there and work by feel.

Thanks very much for the info FriendlyMan. Looks like I may be headed down a similar path... I was excited since after I put the new fuel cap on the SES light stayed off for awhile. Came back on today. I crawled under the truck expecting to see a round vent solenoid but nope, mine is the rectangular style above the fuel tank between the cab and bed. Only way to access it is bed removal ugh. Mine is this style shown below: Been planning on doing much needed corrosion control anyway and now would be a good time to do it. I will replace the vent solenoid AND the fuel tank pressure switch since that too is on top of the tank. Before all that I will go ahead and put a new purge solenoid in. Easy enough right on top of the engine. Man crap like this makes me miss my 77' K10!

2001 Sierra 1500 Ext Cab 4.8 4wd 135,000 miles. Throwing a P0446 Evap Code. Cleared code tried just retightening gas cap. No luck light back on. From what I gather there are several causes of this code to include: 1. Gas Cap 2. EVAP Canister Solenoid Vent Valve 3. EVAP Canister Purge Valve 4. Tank Pressure Switch Also any faulty wiring/hoses to these components. I do not have access to an expensive scanner that will test functionality of these components. I hate blindly throwing parts at something but I'm a bit blind here without the use of a scanner. Is there a pretty common part that causes P0446? My plan of attack is based on easiest-hardest to access parts. 1. New Gas Cap 2. New Canister Purge Valve 3. New Canister Vent Valve 4. New pressure switch (looks like bed will need to be removed for this although I did find some Youtube videos where they were able to replace w/o removal). What have you found to be the common faulty part with P0446?