Search the Community
Showing results for tags 'p0449'.
2017 Sierra 5.3 4x4 crew cab short bed. So I had a Rhino liner sprayed in my truck yesterday, and when I picked up the truck the CEL was on for the first time since I’ve owned it. It was pouring rain and I was in a hurry to get back to work, so I figured I’d deal with it later, and maybe they unplugged something or let the battery drain. Light stayed on back to work and again on the way home. Checked the codes and it had a p0449 and another one for throttle position, but drove fine. Reset the codes and drove to work today with no CEL. Remote start wouldn’t work when I left work, and sure enough it was back, but just the p0449 this time. I checked all of the hoses, wiring, and what I could see of the tank and etc but I see no problems. The solenoid is under the cab and not near the bed, so any ideas if they could have jacked something up when prepping or spraying? Truck is under warranty but I don’t want to pay $100 for GM to say that Rhino folks messed something up and it’s not covered under warranty, but don’t want to harass the bedliner guys if it truly was a coincidence and not related to anything they did. Thoughts?
My GMC Yukon 05 model 5.3L was given to me by a friend because I had recently wrecked my 15 Silverado. I knew and he knew as well that the Yukon wasn't running very good. It would fire right up but it would idle as if out of time or something was stopped up. We put a scanner on it and we had so many codes pop up. the knock sensor code was the first one I tackled by replacing both knock sensors. replaced the intake gasket. I have put a new mass air flow sensor on it and plugs and plug wires. after putting everything back together I cranked back up and it was running worst. clear the codes hooked it back up to the reader and had these 2 codes pop up. P0101(MASS AIR FLOW) even after replacing the old with the new . P0449(EVAPORATIVE SILONOID) I'VE GOT A BRAND NEW ONE BUT HAVEN'T REPLACED IT. what should I do from here need help please point me in the right direction. What should I do next?
Hello, I recently bought a 2000 GMC Sierra 2500 extended cab SLT 2wd with the 5.3L. I was very excited about this truck initially as I got it at a great price, but I am starting to become overwhelmed with all of its problems I recently discovered. The previous owner purchased this truck at an auction, and put a lot of new parts on it mechanically and cosmetically. There are a lot of mis-matched parts on this truck and I can tell it is somewhat of a "Frankenstein." One thing I noticed is that there are 4x4 buttons on the dash, even though this is a 2wd truck (no T-case). So obviously someone put a new dash on from a 4wd donor. Also, the plastic around the ignition cylinder looks like its been monkeyed with, so someone was probably fooling around near the steering column. When I test drove the truck, the only light on was "Service Engine Soon." However, when I brought my truck to get an OBDII scan at the parts store it returned 14 codes (some duplicates) which are as follows: B0017 - Passenger frontal deployment loop open B0024 - Driver deployment loop short to ground B0036 - Discriminating sensor open or short to voltage B0051 - Deployment commanded C0265 - EBCM relay circuit P0430 - Catalyst system - Low efficiency (Bank 2) P0440 - EVAP system P0449 - Evaporative canister vent solenoid control circuit But, NO lights are ever on the dash except the SES. Shouldn't the airbag or SRS light be on as well? On startup the only lights that come are the SES, nothing else. All the gauges work, although they bounce oddly when I shut off the truck. The voltage needle also twitches very slightly when I use the turn signal. Also, when I turn on the headlamps, the only thing lit up is the cluster. The radio, climate controls, and everything else is dark. And, when I cleared the codes with the ODBII scanner, the radio went off and reset itself to 1:00?! I have literally spent hours on end searching in vain for a definitive answer to this host of problems with only little success. I am guessing that the "B" codes mean that I need a new SDM? Perhaps this truck was in a wreck? P0430 might be because of a small exhaust leak this truck has, or possibly the cat is bad. P0440 and P0449 might mean I need a new EVAP solenoid or can? Please help me, it would be greatly appreciated. This truck means a lot to my little family as it is how we are getting across the country for my new job in Tallahassee. Any insights would be very welcome. Thank you all.
So I just wanted to help everybody out by telling you my latest problem and repair with my 09 Silverado with FlexFuel 5.3. Please pin this to the top because this is by far the easiest, cheapest way to replace the vent solenoid on these trucks and this is a very common problem. I was showing a P0449 code which I decided seemed like the canister vent solenoid beside the gas tank connected to the Evap canister. The only reason I finally decided to fix it was because my remote start wouldn't work with a code thrown. Since it's getting cold again, I want that back. My first stop was the old interweb. What I found was this very useful article: http://www.gm-trucks.com/forums/topic/75210-evap-vent-valve-solenoid/. I hope that link works. I don't post on forums often but people need to know this. A post by odayflor in this thread really helped me understand what was going on. That didn't help me figure out why my truck already had the dual port solenoid though so off I went to the dealer and Advance Auto Parts. What I finally found was this: Basically on 99-06 trucks there was a tube leaving the Evap canister that lead into a vent solenoid. This solenoid is ACDelco #214-2149 or GM #25932571. It has 1 inlet and vent from the round lid on the solenoid. Now this design was prone to clogging and producing a P0449 code so, In the 2009's or so they started building trucks with a solenoid that had 1 inlet and 1 outlet with a corrugated tube attached that was routed to above the transmission. There is no listing that corresponds to a 2009 having this dual port design at the dealer or any other aftermarket parts store until you get into the 2011-up models. They show the old single port design. Now if you go to the dealer with a 1999-2010 truck, they will tell you that you have to buy the conversion kit which is the later dual port solenoid and remote filter for ~$100 dollars, plus the jumper wire for $40, since the plugs have now changed on the solenoids(more on that later), and provide your own 5/8" heater hose and 4 hose clamps. This relocates the inlet above the transmission bellhousing in order to ,theoretically, prevent clogging and water contamination. Here's what they don't tell you, and won't even if you know this and ask about it. I was told "sounds like you're just grasping at straws" by my local friendly a** rapist GM parts dealer. In there parts catalog, a 2011 Crew Cab Short Box Silverado lists a GM #20981705 ACDelco # 2142339. From RockAuto it costs $48.79. and only $75 at the actual dealer. This is a dual port Solenoid, bracket, supply hose with quick disconnect fitting, corrugated vent tubing, and remote filter with shield all pre-assembled. This particular part number is for a Crew Cab with a short box but there are 2 other part numbers to accomodate the other length hoses for the other length trucks just check out RockAuto. I decided to just order it and see just out of curiosity. Guess what? It fits my 2009 like a glove!!!! Even down to the matching OEM parts numbers stamped on the parts. Once done, I reset the code by pulling the battery clamp for 30 seconds and she started right up with the remote start. So instead of buying the retrofit kit from the dealer for $100 then cobble it together with heater hose and clamps, you can buy the whole factory assembly for $48.79. On the Jumper wire. This is necessary any way that you go for the most part. I've seen some people post that they didn't need them with aftermarket brands but I definitely did with the original ACDelco one. The reason being is that GM changed the replacement solenoid plug style from an "oval" to a "square" style plug in. On RockAuto it's only $17.73 ACDelco #19257603 so order it too. So, If you have a 99-2010 and only have the single inlet solenoid and simply want to replace that and don't want to fool with a relocated filter, use ACDelco 214-2149. But if you already have a dual port solenoid or you want to replace your single port with a relocated filter assembly use ACDelco # 214-2339 for crew cab short box trucks (remember to check @RockAuto to confirm fitment on your length truck) and for $78 shipping and all, you can have a factory part that doesn't look like its been all hacked up and will only take a 13mm wrench and about 10 minutes time to install. It even comes with clamps on the corrugated tubing to snap it to brake lines along the way so its not just dangling.