Has GM fix the 3.6 timing chain issue?
The LFX version of the 3.6 used in the ATS has a revised set of timing chain components and a reasonable oil change interval, GM made a running change with later production LLT design 3.6 but the timing chain/tensioner issues weren’t truly corrected until the LFX version was released.
Is the 3.1 V6 a good engine?
Except for the notorious leaky intake manifold gasket problem that has plagued many of these engines, the 3.1L V6 has had a reputation for being a long-lived reliable engine. Consequently, there are still a lot of these engines on the road and people are still spending money keeping them running.
Is 3.5 or 3.6 engine better?
The 3.5 has coolant all around the cylinders, with the more compact 3.6 having “siamesed” cylinders. With its external cam drive, the 3.5 is far easier to work on/modify/enhance. While the 3.6 is a more powerful engine from the factory, I suspect it is designed to be left alone.
How much does it cost to fix a timing chain?
Typical costs: Hiring a mechanic to replace a timing chain typically costs $300-$1,000, depending on the make and model of the vehicle, its age and whether the work is performed at a dealership or an independent shop. Purchased separately, a timing chain typically costs $50-$250 or more.
Is the Chevy 3.4 a good engine?
To be fair, the 60 Degree V6 has always been a fairly reliable and low maintenance engine family. The fact that they are well known to survive hundreds of thousands of miles of abuse may be of some comfort when it comes time to shell out $700 to replace your intake gasket (average, includes parts and labor).
What will a bad intake manifold gasket do?
A vacuum leak caused by a bad intake manifold gasket can throw off the engine’s air-fuel ratio and cause engine performance issues such as misfires, a decrease in power and acceleration, a reduction in fuel efficiency, and even stalling.
What are intake manifold gaskets?
The intake manifold gasket seals off the small gap between the manifold and the engine, preventing air, coolant, and oil from leaking. Over time, the intake manifold gasket endures a lot of wear and tear. Eventually it may crack or warp in ways that allow leaks to occur.
How fast is a 3.6-liter engine?
Rotating Assembly with Oil-Spray Cooled Pistons: the crankshaft is manufactured from forged steel and the connecting rods are a sinter forging, as used on other 3.6L V6 VVT engines.
GM 3.6 Liter V6 LLT Engine.
|GMC Acadia (with dual exhaust)||270 lb-ft (366 Nm) @ 3400 rpm SAE CERTIFIED|
|Maximum Engine Speed:||6700 rpm|
Is the 3.5 a Hemi engine?
215 cu in (3.5 L)
This economy-orientated version of the Hemi 6 was released as a running change in early 1971 as the base model engine in the VH Valiant. This engine shares the same stroke length as the other engines but has a smaller bore size of 3.52 in (89 mm) and lower compression ratio of 8.0:1.