9 votes
Accepted

How does cylinder deactivation work?

The link @cory posted is the description from the service manual. Just a repaste and I'll add some images and additional information. Cylinder deactivation is accomplished by not allowing the ...
Ben's user avatar
  • 10.7k
9 votes
Accepted

Before changing a fuel filter is it ok to let the line run dry?

While disconnecting the fuel pump relay and running the engine will work, there are other alternatives. If you can access the Schräder valve, depress it to release the pressurized fuel before ...
Zaid's user avatar
  • 39.1k
8 votes

Wiring extra truck battery to power winch

The method suggested by Paulster2 will certainly work. Another way to do it at lower cost is to use a 12 volt, 120 amp continuous duty relay. Make a permanent connection with heavy cable from the ...
MTA's user avatar
  • 6,095
7 votes

Brakes are soft

There's air in the lines from the sounds of it, likely from them not correctly bleeding the system. An air bubble in the system will compress before the rest of the fluid in the lines, thus not ...
Aaron Lavers's user avatar
  • 1,586
7 votes

Wiring extra truck battery to power winch

I think the easiest way to accomplish this is the get a 12vdc to 12vdc charger to use to charge the battery, then keep the wiring to the winch as direct wiring without connecting into the truck's ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
6 votes

1996 Chevy K1500 Silverado ZZ4 5.7L - Rough Idle, Plug Damage, Overheating, EGR

I see the following possibilities: Like dlu said: wrong range of spark plugs. Perhaps you can try some colder ones. When trying this: be sure to check the spark plugs soon, a too cold spark plug ...
Martin's user avatar
  • 8,448
6 votes

Before changing a fuel filter is it ok to let the line run dry?

You are correct in how to do this. I was just watching an episode of "Tech Garage" and they were talking about this very topic. Their suggested methodology was to pull the fuel pump fuse, and run the ...
cdunn's user avatar
  • 9,296
5 votes
Accepted

08 Silverado 5.3 rough idle and dark cold start exhaust

First of all, the 5.3l engine (could be all of the Vortec LS engines, don't know) is thirsty. It drinks a bit of oil. Be aware you could be looking at up to 2 quarts between oil changes. I don't know ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
5 votes
Accepted

08 Silverado 5.3 cold start exhaust smoke and engine stall

Oil consumption in the LM7 engines is pretty common. The L33 in my '06 Silverado is around the same amount, maybe a little less. What you are talking about sounds more like a stuck/leaky injector. Oil ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
5 votes

truck makes a tapping/knocking sound only happen the first start of the day and stops after truck is warm

Older vintage Silverados had a known issue with piston slap. It is worse in the winter but is always present even in warmer weather. The forums have been saying for well over a decade it has to do ...
mikes's user avatar
  • 19.9k
5 votes

What all do I need to buy when installing new transmission and torque converter

If this is a newly rebuilt transmission which comes with a warranty, you won't need to replace the pan gasket and filter. These should be brand new and already be installed. Obviously you'll need the ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
4 votes

Brakes are soft

went back and they bled the brakes again after telling me they were good twice and now they work like they did before the master cylinder went bad. Problem solved.
user19022's user avatar
4 votes
Accepted

How to get a CD out?

I did some searching on the Interwebz and found this wiring breakout of the plug which goes into the back side of the stock head unit: Here is an image of the socket in the back of the head unit: ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
4 votes

Truck won't budge in neutral. Could it be due to a cracked transmission bellhousing?

The cracked bell housing would not be preventing the flywheel from turning as an automatic transmission doesn't work that way. The engine is not physically coupled to the transmission from a driven ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
4 votes

1996 Chevy K1500 Silverado ZZ4 5.7L - Rough Idle, Plug Damage, Overheating, EGR

My first thought here is to tackle the problems methodically, one at a time. The one that sounds most significant to me is the plug 5 damage – from what you've said it sounds like detonation (aka ...
dlu's user avatar
  • 14.5k
4 votes

How to verify the safety of a lift for a full sized pickup?

What I do if I'm not sure about the vehicle being stable way up there is: gently nudge the vehicle side to side using only the strength from your wrists. Kind of like when you're checking if a door ...
tlhIngan's user avatar
  • 12.2k
4 votes
Accepted

Replacing Front Suspension

I seem to remember with the old Peugeot 205, which had torsion bar rear suspension, the method was to count the splines on the bars and make sure the new ones went in the same way. Remember that the ...
Nick C's user avatar
  • 28.7k
4 votes

truck makes a tapping/knocking sound only happen the first start of the day and stops after truck is warm

I'm new here, but there's a thing called piston slap. This is when the piston skirt gets worn and starts to hit the sides of the cylinder wall. It happens on older vehicles with high milage. If this ...
Jupiter's user avatar
  • 3,187
4 votes

What happens when an automatic transmission completely fails?

There isn't a single answer to this, there are many failure modes for a transmission. If the torque converter goes then it's pretty catastrophic event, all your transmission fluid will spew out and it ...
GdD's user avatar
  • 16.9k
4 votes

What happens when an automatic transmission completely fails?

More than likely, when the transmissions goes, it will just quit working. It may exhibit some noise when it gives up the ghost, but that isn't a given. The transmission in your truck is the 6L80E (six-...
Pᴀᴜʟsᴛᴇʀ2's user avatar
3 votes
Accepted

Problems turning left in a 2002 Chevy Silverado

In order to confirm the diagnosis, you may want to get a second opinion. Some shops will do front-end inspections for free. If the truck is more difficult to steer in one direction only, it does ...
tlhIngan's user avatar
  • 12.2k
3 votes
Accepted

08 Silverado 5.3 engine "click"

There is more than likely one of two things going on here. Sticking/Stuck Lifter There could be a lifter going bad. These tend to make a lot of noise up top, then can quiet down after the oil ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
3 votes
Accepted

2007 Chevy Silverado How to remove interior rust

If you want the truck to last, my suggestion is to take care of this surface rust as best as possible. This depends on the amount of work you are willing to go through to take care of it. Here is my ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
3 votes

How to verify the safety of a lift for a full sized pickup?

Perhaps I will get some heat for my opinion but I do not like the shown jack stands. I have a (totally unfounded) fear that I could hit the lever with my feet and the stand collapses, that the locking ...
Martin's user avatar
  • 8,448
3 votes

truck makes a tapping/knocking sound only happen the first start of the day and stops after truck is warm

More than likely the lifters are getting worn out. When this happens, they lose the oil in the body while sitting for a long time, then there's lots of excess valvetrain noise. Once the oil pressure ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
3 votes
Accepted

Chevy Silverado muffler and/or exhaust is rattling

It just sounds to me like the inside of the muffler has deteriorated and is now rattling. About the only "fix" for it is to replace it.
Pᴀᴜʟsᴛᴇʀ2's user avatar
3 votes
Accepted

Wiper arm nut loosens

Use some light type Loctite 222 (no affiliation). It will hold the nut in place without the issue of it being hard to remove if you ever need to.
Pᴀᴜʟsᴛᴇʀ2's user avatar
3 votes
Accepted

When should engine fans turn on to cool transmission?

The engine fans won't turn on to cool the transmission. The transmission fluid is passively cooled in the cooler loop inside the radiator by whatever temp the coolant is at the time. Mind you, this is ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
2 votes

2000 Chevrolet Silverado brakes dragging, 4 new rotors, 4 sets of pads, new e-brake shoes, new front calipers

I have seen this behavior with a bad ehcu but is rare, they have an internal valve for each wheel, but it does happen. Internal collapsed brake hose I have seen many times, also sticking calipers use ...
Moab's user avatar
  • 7,990
2 votes
Accepted

08 Silverado static/scratching noise from dashboard

The gauges in the dash are actuated by motors. When you turn the vehicle on, they do their "power on self test" and start doing their thing getting the gauges set correctly. If one of them is having ...
Pᴀᴜʟsᴛᴇʀ2's user avatar

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