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Chevrolet Silverado 1500, Chevrolet Silverado 2500, Chevrolet Silverado 3500, GMC Sierra 1500, GMC Sierra 2500, GMC Sierra 3500, Transmission, Truck
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#1232 of 1523 I just an owner
Apr 01, 2012 (2:43 pm)
I have two cars. Both of which I bought new. The first one is a 2007 Honda Accord EX-L 4 cylinder. It's been pretty much flawless. The first "repair" was a bad central airbag controller. The repair was $600.00 and I called American Honda and they and the dealer knocked off about 35% off the repair. Talk about trying to build loyalty. This with a car that had 99,000 miles on it with no extended warranty.
The second is a 2011 Chevrolet Silverado Crew Cab 1500 -5.3LT w/the tow and chrome pkg. It currently has 13,000 miles on it. It tows my 5,000 pound travel trailer satisfactory. Yes, it has the power train "clunks". Yes, it's 20 PSI oil pressure at idle. It also rides very smooth and I can CONSISTENTLY get 20mpg on the highway at speeds not exceeding 70ish with the AFM going to 4 cylinders.. It's been to Salt Lake City, UT twice and once to Sedona, AZ from Southern California.
#1233 of 1523 Re: I just an owner [chuck1]
Apr 01, 2012 (5:45 pm)
Well that helps explain a lot. First off, you berate anyone who has a problem that 'you' haven't had for no apparent reason, but turnaround and play the hypocrite card for asking Honda to pony up a discount on something that was well out of warranty. Cheapskate, why didn't you just deal with it. That is what you've been telling everyone on this forum. Second, you're in Cali. 'Nuff said. Third, you're not a mechanic and you wouldn't know what a powdered metal rod was if it hit you in the face. Google it. Fourth, you don't know what the proper oiling requirements are. Fifth, your truck doesn't vibrate and whine, mine and others do. Sixth, apparently you have no clue that GM subs out the differentials to American Axle, so it's not a GM product. Seventh, my truck wouldn't get 20 mpg if I shoved it off a cliff, but yet I had an old gen LT1 in a corvette that would get 30 mpg running 70 all day long. 30. And lastly, you probably don't know that GM makes special packages for the Ark-La-Tex area because that's where they sell 3 out of 4 trucks domestically.
I've always bought GM. I'm a GM man, but I will not sit here and make excuses for junk quality.
#1234 of 1523 Re: I just an owner [jjacks]
Apr 01, 2012 (6:07 pm)
Yea, I am in California and am quite aware that all cars/trucks are made of parts from various suppliers. Your the one saying it's not getting enough oil as designed by the manufacturer. So apparently, you know more because your a mechanic than the engineers that design them.
I don't believe for a minute that LT1 motor got 30mpg in a corvette.
I am quite aware that GM makes special packages. Those very packages. are available nation-wide but GM gives them different names in every region.
#1235 of 1523 Re: I just an owner [chuck1]
Apr 01, 2012 (10:11 pm)
No Chuck, I didn't say it wasn't getting enough oil. I said the oil pressure is marginal. You see, if you were mechanically inclined you would know that pressure readings and volumes are not the same. It may be receiving ample volume without the pressure. It could be by design, or it could be machined surface clearance out of tolerance by a mere .001 of an inch, which would be .0005 inopposite. Who knows. The point is less drag. Less drag means more mpg, get it? Of course that's the cheapskate way to get mpg, those big brained engineers could improve the windage of the crankshaft, increase the oil psi and improve mpg and reliability. But that would be more expensive than a spring that regulates pressure.
I don't want to mislead you Chuck, I bought the 'vette new in 1994. It got about 26 mpg from the factory. I increased the fuel pressure 3 psi and reprogrammed the computer. Then it got the 30 mpg. So much for the 'engineered designed fuel and timing maps'.
I've got a '72 vette in my garage right now. It's getting a complete resto and a LS3 mated to a T56 6spd. It should get 27 mpg. If only some GM engineers could come over and tell me it won't work......sigh.....lol
#1236 of 1523 Re: I just an owner [jjacks]
Apr 04, 2012 (11:30 am)
Hey Chuck...you are right on with every point! When a person has a car that doesn't have tranny problems they think the rest of us are making it up. They also say "oh all mfg. have problems with transmissions.huh? Neither ford or GM will fess up to buying poorly built trans. The reason is...there percent of bad ones aren't high enough and no one has died (there have been accidents though). Chuck you know your cars and you certainly like GM but wrong is wrong. So it is refreshing to point out the obvious...quality is important.
#1237 of 1523 Re: I just an owner [babbs3]
Apr 04, 2012 (11:46 am)
I don't think those with problems are making them up. These power trains ARE NOT the smoothest.
However, my issue is because some are upset (as I would be too) is the half-truths or sometimes outright lies that get put on this forum.
I guess it's their way of getting "revenge".
I will continue to do the "half truth alerts".
#1238 of 1523 Re: I just an owner [chuck1]
Apr 04, 2012 (7:10 pm)
Chuck boy, if you are saying people are lying, including myself, then maybe you should carry your little self on over here and I'll make a believer out of you. You're not a mechanic and just because you got lucky and got a decent one, that doesn't mean everybody else is out for revenge and spreading lies. Pathetic.
#1239 of 1523 Re: I just an owner [babbs3]
Apr 04, 2012 (7:14 pm)
Babbs, I think you have me and chuck confused. I'm the chevy man without pom poms, Chuck is the honda guy with pom poms. Thanks
#1240 of 1523 6 Speed Tranny in 5.3l not tuned correctly from factory!
Apr 05, 2012 (8:26 am)
I have a 2009 with a 5.3l, 6speed, 4x4, 3.42 rear end. It came with the Z71 package and has the 18" wheels. I have been having problems with the transmission and I am wondering if anyone else has experience similar problems. 55k miles.
Here is what happens.
When I pull away from a stop, it shifts very, very quickly (under normal driving, when I hammer on it, this doesn't happen) down into 2nd and third gear...it goes to 2nd before I even make it through the light. So, when I want to then bring it up to speed, it is already locked down into usually 3rd and wants to stay there unless I go past probably 3/4 throttle, at which point it jumps down violently to what feels like 1st. Seems like it is tuned very, very aggressively for mileage. Very, very annoying as it does that all the time..so neighborhood/slow speed city driving really stinks. Tranny is very confused. If I put it into tow/haul, it stays in gear much longer and there is no issue. Seems like it might be tuned for an engine with much more torque or a 3.73 or 4.10 rear end.
2nd. When slightly rolling (1mph or less) and then trying to accelerate, there is a slight 1/2 second delay, then the power kicks in and everyone's head jerks back. I have to be very, very, very gently on the pedal and feather it through this until the engine/power engages. This seems like it might be a throttle issue or something to do with the fuel delivery. Does this truck have a throttle cable, or is it electronic?
3rd. Problem. Towing. Under hard acceleration (not w.o.t., but well past 3/4 throttle) and towing 2k--4K trailer, there are multiple times where the tranny "jumps" or slips in between 2nd-3, 3-4, and 4-5. Engine revs slightly and it jerks into gear. Again...seems confused.
I have had this truck to the dealer for warranty work on tranny. There are no codes. They could find nothing. I explained everything to my dealer as I have in this post. It is due to go in again. I checked tsb's and couldn't find any that seemed to be related to the issues I am having. HELP
2 times ago at my dealership they gave me a 2012 as a loaner. Totally different truck even though it had the same engine and the same tranny and the same rearend (3.42). Clearly the 2009 needs an updated tune , but GM refuses to both acknowledge this and act on it. Help. Somebody. Please.
Apr 05, 2012 (9:39 am)
I have posted several times about my 2011 that has the same transmission problems. Returned to three different dealers and they all say the same thing "it's normal for the transmission to be erratic because it is tuned to save gas". Funny, I went from a Yukon with a 4 speed automatic to this 6 speed and it was never disclosed to me that I would hate driving this new truck! The gas mileage increase in minimal, maybe a half a mile to the gallon. GM, PLEASE FIX MY TRANSMISSION, for $50,000 the truck should be a dream to drive!