Gm 6.2

[Wall-eyes]

I just sell mine to someone else really easy and go buy almost new from other guys dealers are not what they once were. My 2 cents saved thousandsssss each his own

 

[shorthairsrus]

Ford engineered the 10 speed that both GM and Ford use on the rear wheel drives (and 4WD). GM did the front wheel drive 9 speed.

Does GM still have a lifter issue on the new ones?

Every 6.2 i hop info shows 14mpg overall.

 

[Fester]

Ford engineered the 10 speed that both GM and Ford use on the rear wheel drives (and 4WD). GM did the front wheel drive 9 speed.

Does GM still have a lifter issue on the new ones?

Every 6.2 i hop info shows 14mpg overall.

Yup you are correct..the 9 speed that GM developed was supposed to be used in Ford vehicles since Ford developed the 10 speed(they were working together to create the transmissions)…Ford refused to use the 9 speed GM developed…wonder why? Also the 6.2 is the same block as the 5.3l…..good or bad?

 

[NodakBob]

I had a lemon 5.3 Chevy (2007)…now drive a ford 6.2 gas; wish I had a ten speed but the 6 speed never shifts on the highway with the 6.2 torque

 

[Twitch]

Had a 2013 gmc with 6.0 that was good for towing but not great for mileage. Now have a 2021 AT4 with the 6.2 and 10 speed transmission. Still good for towing but waaaaaayy better mileage. Both have had little to no problems. ‘13 was a 3/4 ‘21 is a 1/2.

 

[5575]

I just went from a 3.0 baby duramax "crazy milage 32-34 mpg/over 700 miles on a 24.5 gal tank".
To a 6.2 I picked up used up in Canada, that was super clean.
Just pulled my boat home from the big lake yesterday, it sure pulls it nice thats for sure.
I liked the 3.0 allot but found myself never wanting to use it, it was black and a Denali. Never wanted to see the fancy thing dirty, if it had been white though I would have probably kept the little diesel. First and last black truck ha ha.

 

[risingsun]

I just went from a 3.0 baby duramax "crazy milage 32-34 mpg/over 700 miles on a 24.5 gal tank".
To a 6.2 I picked up used up in Canada, that was super clean.
Just pulled my boat home from the big lake yesterday, it sure pulls it nice thats for sure.
I liked the 3.0 allot but found myself never wanting to use it, it was black and a Denali. Never wanted to see the fancy thing dirty, if it had been white though I would have probably kept the little diesel. First and last black truck ha ha.

Racist. Went black and never went back.

 

[Captain Ahab]

I've had four 6.2's. They all have had good power and the mileage is quite good on the highway. Around town it eats more than the 5.3 though. They pull my trailers and boats well. Only issue I had was with my 2020. The lifters failed at 12,000 miles. GM put new lifters and a cam in, but it was a PIA waiting for parts in COVID times. I would have been pissed if it wasn't under warranty. It would be hard to go back to a 5.3, but I will say my Dad's latest 5.3(2022) has a lot more snort that the older ones for sure. As far as long-term mileage averages it's hard for me to get a good reading because enclosed trailers and boats are pulled a lot. If you drive nice and it's not windy, you can pull 20-23mpg on the highway.

 

[snow]

Ford engineered the 10 speed that both GM and Ford use on the rear wheel drives (and 4WD). GM did the front wheel drive 9 speed.

Does GM still have a lifter issue on the new ones?

Every 6.2 i hop info shows 14mpg overall.

From 07 to 2010 5.3 oil consumption issues until Gm switched to semi synthetic dexos 1 or full synthetic last information i received.


Lifter issues were with ealier 6lit engines,the new 6.6lit gas,no issues as far as i know.6.2 has proven bullet proof,in 1500 pickups,high end suv's,corvettes, camero..


GM builds this power train in very limited production, f ing feds,epa ...all about fuel economy, sure fuel economy is great but ppl purchase vehicles with larger power trains for a purpose,fuel economy we live with good or bad is my take.

 

[shorthairsrus]

My sources told me 6.6 liters were built to last. All engines now days have are so tight with tolerances you really cannot depend on anything anymore. Our govt is pushin green so hard and it is costing the average person with repair bills.

I would be curious to see -- did gm replace both sides on ahab. I have heard they only do one side --- kinda like when they did my 07, they when thought 15 different steps including replacing the baffles, then pistons and then finally a pallet with a new engine.


Lifters were made during covid is what i heard. lack of good staff at a little shop that makes them.

I had an opportunity to drive a 6.2 with a unloaded toon trailer. It doesnt snap back your head like my 3.5 did -- but it makes cool bunch of noise.

 

[Captain Ahab]

Mine was bad enough to hurt the camshaft so they did both sides. Otherwise I heard they just did one side. I would have not been happy with that. I heard they were short on there normal lifter source so the got a bad batch out of Mexico. Not sure if that’s true…

 

[johnr]

Mine was bad enough to hurt the camshaft so they did both sides. Otherwise I heard they just did one side. I would have not been happy with that. I heard they were short on there normal lifter source so the got a bad batch out of Mexico. Not sure if that’s true…

I have also gotten bad batches out of Mexico, but it just gave me the bloody shits for a few days.

 

[Twitch]

I have also gotten bad batches out of Mexico, but it just gave me the bloody shits for a few days.

Where the hell is Guywithajoke when you need him

 

[snow]

My sources told me 6.6 liters were built to last. All engines now days have are so tight with tolerances you really cannot depend on anything anymore. Our govt is pushin green so hard and it is costing the average person with repair bills.

I would be curious to see -- did gm replace both sides on ahab. I have heard they only do one side --- kinda like when they did my 07, they when thought 15 different steps including replacing the baffles, then pistons and then finally a pallet with a new engine.


Lifters were made during covid is what i heard. lack of good staff at a little shop that makes them.

I had an opportunity to drive a 6.2 with a unloaded toon trailer. It doesnt snap back your head like my 3.5 did -- but it makes cool bunch of noise.

Agreed,the 6.2 with standard 3.42 gears is nothing to brag about,not sure what curb weight is but over 6k lbs,looking for 6.2 performance, gotta upgrade to max trailering with 3.73 gears,more torq makes a big difference, few dealers have well trained staff,they just want sales bottom line.

Recent slow production,is hurting most dealers,infact the dealer that deliverd my retirement truck,i witnessed older sales ppl practicing lying to each other...lol

 

[BrokenBackJack]

I have also gotten bad batches out of Mexico, but it just gave me the bloody shits for a few days.

Did you mean bitches and not batches????

 

[Zogman]

Agreed,the 6.2 with standard 3.42 gears is nothing to brag about,not sure what curb weight is but over 6k lbs,looking for 6.2 performance, gotta upgrade to max trailering with 3.73 gears,more torq makes a big difference, few dealers have well trained staff,they just want sales bottom line.

Sales gotta be tough when most on the lot are the 2.7

 

[snow]

Agreed feds,epa putting the screws to ppl that need and use our trucks.

I remember mid 80s ,GM was forced to eliminate the 350v8 for a few years

Infact GM tried converting the 350 block to diesel,great milage when they didnt break down,down right horse


shit in cold weather.

Then by late 80's reintroduce the 350 with fuel injection,200hp jumped to 250hp,throttle body injectors replaced 2barrel carb.

 

[BrokenBackJack]

Those 6.2 diesels were mileage makers but not much for power.

 

[1lessdog]

Those 6.2 diesels were mileage makers but not much for power.

I had one, they wouldn't pull a setting hen off a nest. But got good mileage .