Why does my 2001 Cheve Silverado 5.3 L make a knocking sound when started cold and then go away after it runs a minute or if it is driven a minute. The sound seems to come from the bottom of the motor or the tranny area and has been there since i bought the vehicle. It doesn't seem to be getting worse and someone suggested piston slap as the problem. Any ideas ?

Asked by Ratherfluffy Aug 15, 2013 at 03:27 PM about the 2001 Chevrolet Silverado 1500 LS Extended Cab 4WD

Question type: Maintenance & Repair

The fluids are good and the tranny is rebuilt too.

migration_judge_roy answered 10 years ago

a leaking fuel injector can dump gas....check the oil in your crankcase for evidence of fuel there...examine your injectors for leakage~

1 people found this helpful.

Mark helpful

875

LUVMYCHEVY answered 5 years ago

how many miles are on truck?

Mark helpful

F_O_R answered 5 years ago

Then again this could be a rod knock.

Mark helpful

Guru9BSGB4 answered 2 years ago

Probably the check valve in oil filter, well lack of just taking it longer to prime to top of motor. Was a issue in some early to late 90s trucks.

Mark helpful

Your Answer:

Why does my 2001 Cheve Silverado 5.3 L make a knocking sound when started cold and then go away after it runs a minute or if it is driven a minute. The sound seems to come from the bottom of the motor or the tranny area and has been there since i bought the vehicle. It doesn't seem to be getting worse and someone suggested piston slap as the problem. Any ideas ? 4 Answers

The fluids are good and the tranny is rebuilt too.

2001 Chevrolet Silverado 1500 LS Extended Cab 4WD

-

Maintenance & Repair
I have a 2004 Chevy Silverado extended cab, 4.8 liter. I have had multiple issues with this vehicle, but the one I can't seem to solve is this: if I leave the truck sitting for a day, when I get in and start driving, about 5 miles down the road, it acts like it is being starved of fuel. The engine light starts blinking and there is no power even when i step on the gas fully. After a minute or two, it goes away and runs fine unless I let it sit for a couple days. I just replaced my fuel lines because they were rusted out but that didn't solve the problem. Any ideas anyone? 6 Answers

Engine light is always on and blinks on and off when problem occurs.

2004 Chevrolet Silverado 1500 Extended Cab 4WD

-

Maintenance & Repair
my oil pressure went down to 0 and then i turned it off. its a 2001 chevy silverado. I turned it back on and it was fine. Then i started driving and it happened again and this time the engine shut off. Is there a safety feature that prevent the motor from seizing? 9 Answers

I was driving and the oil pressure started to fluctuate from 40 to 0 so i pulled over and shut it off. I then turned it on and it went back to 40. drove off and it happened again so i pulled over and ...

2001 Chevrolet Silverado 1500 Extended Cab LB RWD

-

Maintenance & Repair
I have a 2001 Silverado 1500 4.3 v6. I bought it used about a year ago, it throws the code "camshaft to crankshaft position correlation fault" and it has a slight miss that is worse when it's wet out. 4 Answers

I've replaced the ignition module, distributor, cap, rotor, and the crankshaft sensor. I can't figure out the problem. Could someone please help?!?

2001 Chevrolet Silverado 1500 LS RWD

-

Maintenance & Repair
Evening: I currently have a 2006 Chevrolet Silverado 1500, 5.3 engine with 113,000 on the clock. Truck has never been abused and runs fine. Question At full operating temp it developed what sounds like a miss or maybe a exhaust leak last year. Local dealer said it was the belt slapping and the belt was changed but this was not the problem now that temps are getting warmer its a bit louder than last year. Its only noticible under load and easier to hear in the cab than under the hood. Seems to me its on the passenger side. All manifold bolt heads are there and I see no sign of leaks in the exhaust system. Any ideas or does anyone know of something I am over looking? Thanks 1 Answer

2006 Silverado 1500 4wd, 5.3 aoutomatic trans 113,000 miles

2006 Chevrolet Silverado 1500 Work Truck Extended Cab 4WD

-

Maintenance & Repair

Looking for a Used Silverado 1500 in your area?

CarGurus has 7,288 nationwide Silverado 1500 listings starting at $6,995.

Used GMC Sierra 1500

129 Great Deals out of 7,719 listings starting at $4,944

Used Ford F-150

297 Great Deals out of 13,635 listings starting at $3,888

Used Chevrolet Silverado 2500HD

21 Great Deals out of 1,538 listings starting at $5,990

Used Toyota Tundra

26 Great Deals out of 936 listings starting at $10,698

Used Dodge RAM 1500

3 Great Deals out of 87 listings starting at $3,990

Used Toyota Tacoma

40 Great Deals out of 838 listings starting at $9,975

Used Chevrolet Tahoe

13 Great Deals out of 786 listings starting at $7,499

Used GMC Sierra 2500HD

28 Great Deals out of 2,063 listings starting at $7,997

Used Ford F-250 Super Duty

21 Great Deals out of 761 listings starting at $3,990

Used Chevrolet Camaro

16 Great Deals out of 476 listings starting at $11,999

Used Ford Mustang

38 Great Deals out of 1,635 listings starting at $7,999

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.

4 Answers

Your Answer:

Looking for a Used Silverado 1500 in your area?

Shortcuts

Search Chevrolet Silverado 1500 Questions

CarGurus Experts

Find great deals from top-rated dealers

Related Models For Sale

4 Answers

Your Answer:

Related Questions

my oil pressure went down to 0 and then i turned it off. its a 2001 chevy silverado. I turned it back on and it was fine. Then i started driving and it happened again and this time the engine shut off. Is there a safety feature that prevent the motor from seizing? 9 Answers

I have a 2001 Silverado 1500 4.3 v6. I bought it used about a year ago, it throws the code "camshaft to crankshaft position correlation fault" and it has a slight miss that is worse when it's wet out. 4 Answers

Looking for a Used Silverado 1500 in your area?

Shortcuts

Search Chevrolet Silverado 1500 Questions

CarGurus Experts

Find great deals from top-rated dealers

Related Models For Sale