1999 Chevrolet Silverado: engine knocking or ticking

Filed Apr 9, 2015 · Suspension · 143,000 miles · VA

I was driving to my home from work when I noticed an excessive knocking sound coming from the front of the truck. I pulled into my driveway looked at the front suspension and around both tires. That's when I saw that the passenger side front upper shock mount had broken free from the frame. The shock was just banging freely against the frame. The truck is 15 years old so I know its not under warranty, but that's just poor construction. The truck has been my daily driver and has never been offroad. Judging from the other complaints regarding the frame cracking and/or breaking that I've read, I'm assuming gm isn't going to do anything about it. It's just sad. Regardless, I think the federal safety agency should issue a recall because this is a safety concern. The excess bounce can cause the driver to lose control of the vehicle.

Filed Jun 20, 2005 · Engine · 5,000 miles · OH

I have a 1999 chevy silverado that has been diagnosed with piston slap. This all started shortly after I purchased the vehicle in 1999. However, the dealer refused to fix it, stating that it is normal noise. (normal? Then why didn't the engine make this noise when I first drove it off the lot)? I continued asking the dealer about the noise but they continued to say that it was normal noise. Finally, I took the vehicle to another gm dealer on april, 2004. The vehicle had 48,799 miles. I asked the mechanic and service representative to listen to the engine, both determined the noise was not normal, and needed repaired. They performed numerous engine repairs that seemed, at that time, to make the noise go away. In june, 2004, the vehicle now had 49,023 miles, the noise had returned, and the gm dealer again stated the noise was not normal. They then replaced the long block of the engine, that seemed to have taken care of the problem. As of this date, the vehicle is back at the gm dealership with the same engine noise, which is a loud ticking/knocking noise. I am, again, being told is "normal" for this engine. (this is statement is being quoted by general motors, as being "normal". Initially, when I recently took the vehicle to the gm dealership, the service technicians indicated the noise was not normal...until the engineers at general motors conveyed the noise as being "normal".)

Filed May 4, 2005 · Engine · 40,000 miles · MI

Around 40,000 miles the engine began ticking and tapping after start-up when the rngine is cold. Now its happening all the time when you start it up. I heard from other owners its called (piston slap). I took ithe vehicle to the dealer and they said they had quite a few complaints about this and said the manufacture is working on the problem. Does'nt look like anything will be done about it!!!! Please help?

Filed Nov 30, 2004 · Engine · 13,500 miles · CA

Consumer stated that after 12,000 miles the engine was having a knocking sound. Consumer took vehicle to the dealer, and was told that there was no solution for the vehicle, and the manufacturer was exploring ways to remedy the defect.

Filed Apr 14, 2004 · Brakes, Steering · OH

The federal safety agency campaign id number:98v2420000 involves problems with the steering box and according to the dealer my VIN number of [xxx] not one of the ones involved in it.even though I keep getting a knocking noise occurring right in front of me and the steering shaft has been replaced for some reason.can you check into this?also I have had the brake work done but it seems sometimes I'll be pressing on the brakes to stop and its like they give away and I have to press the petal down further to get them to stop.can you also check this out? Updated 07/30/2012 *js information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6)

Filed Mar 26, 2002 · Engine · MO

Truck was in shop 6 times for knock in the engine, the engine is still knocking. Nlm

Filed Feb 27, 2002 · Engine · MO

Knock at start up in shop 6 times not fixed !!!!.

Filed Mar 2, 2001 · Engine · LA

When starting vehicle or when driving engine was knocking. Engine knocking was very loud upon first start. Consumer has contacted dealer. Please provide any further details.

Filed Feb 27, 2001 · Engine · MO

From the very begining, the engine, (5.3l), has made a ticking/knocking noise at start up (similar to what "noisy lifters). I was told by the dealer some time ago, that is was faulty pistons, ("piston slap"), with no solution yet. I have since also heard this from addtional automotive resources. It has continued to get worse. I spoke to the dealer again today, and am meeting with him tomorrow, leaving my truck so they can start it in the morning. I just anticipate a lot of problems. He has told me that they have had many trucks come back for the same reason, and have even replaced entire engines. But he also said it could be "carbon build up". I don't think so, because it was doing this from the first day off the lot. I hope I am wrong, but expect a very difficult battle to get the engine replaced. Any information or help you can give me would be greatly appreciated. I have talked to numerous other truck owners with the same problem. Some have had major repairs like new lifters, without success. But those who let the dealer do major repair, then later were told chevrolet would not take the motor back and put a new one in, because the dealer had already "broke" into the engine. (didn't mean to write a book, but really would like some help/support. This is a very new and expensive truck, and I should not have an engine knocking with 40,000 miles on it, particularly from day one. I take meticulous care of this truck and change the oil like clock work every 3500 miles. Thanks so much for any help or direction you can provide! Sincerely, [xxx] parts of this document have been redacted to protect personally identifiable information pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).

Filed Jan 30, 2001 · Engine · SC

Eng knocks @ start daily, dealer says nrml, owners manual doesnt show as normal.

Filed Dec 8, 2000 · Electrical, Engine · GA

The following have all been replaced: 5.3 l engine, catalytic converter, four oxygen sensors, 1 starter sensor, 1 crank sensor, 1 window regulator, rear air-vent assembly, 1 shaft in the front suspension, 1 headlight bracket, 1 knock sensor, 4wd switch, 1 clamp for rear window. Vehicle is 15 months old and has 32 days of in-shop service. Service engine light has come on 4 times in 14 days. On 12/4, vehicle stalled when attempting to accelerate. Engine had a spare part left in at manufacturing and was destroyed from the part flying around inside. Abs has engaged too soon in the past and vehicle could not be stopped.

Filed Jun 7, 2000 · Brakes, Suspension · TN

Truck has been at dealer for repair total of 35 days before 1st anniv. Of ownership with over 20 separate problems, 5 of which are unresolved to this date. Vehicle is at dealer now for final repair before tn lemon law can be implemented. Worst and current problems are front end alignment (pulls to right), front brake squealing (pads replaced twice, rotors turned once), rear end vibration at any speed and clanking sound over bumps(all 4 tires, both rear leaf spring stacks, all 4 shocks replaced. One shock had broken shaft) , engine backfires & knocks at startup (dealer reprogrammed comp. W/no results except to improve power, but accel. Pedal sticks now!), trans. Slips from dead stop for few seconds about once per week, 4wd transfer case slipped in low in deep snow (replaced fluid and did reprogram. Results??), ext. Cab pop out windows replaced due to poor fit (one exploded upon removal & dealer had to repaint side of truck. New ones are no better than originals!), rear seat missing rubber mounts(dealer replaced, but now seat makes popping noise due to rear cab wall flexing!), drive shaft makes loud clanking sound when shifting from park(dealer says this normal!). Problems repaired: rear brake line loose & in harms way(missing mount replaced), steering box loose and steering column rattled and loose around any turns(box tightened and column shaft replaced), drivers side window switch sticking in down posit.(switch replaced), all door weatherstrips and drip rail molding loose (replaced all), rear license plate light broken and replaced, door lock levers fell out of both doors(replaced both). Lemon, lemon,lemon!!!!!!!!!!*ak( dot number: )