Jump to content

Engine rattle

rtbrick

Recommended Posts

rtbrick Enthusiast

rtbrick

Posted
Posted

My engine rattles when driving down the road. Just cruising along and I get that loose lifter-type of rattle. I have the GM engine knock on cold start-up, but this rattle is a sort of "diesling" type of rattle. I have not noticed a loss of performance, but the sound is truly annoying. What should I do to rectify?

budhayes3 Senior Enthusiast

budhayes3

Posted
Posted

If it's an internal noise that you're experiencing, I'm not sure that it can be rectified. My engine sounds fairly noisy, like lifters or loose rockers, also. From what I've researched it appears to be common among GenIII style engines...although it does drive me nuts. If it's an external rattle, I'd check for loose exhaust heat shields, loose splash shields, etc. I've heard that the O2 sensor's have a tendency to rattle also...the little tin shields that are on them. Hope this helps a bit.

Halen5150 Enthusiast

Halen5150

Posted
Posted
My engine rattles when driving down the road.  Just cruising along and I get that loose lifter-type of rattle.  I have the GM engine knock on cold start-up, but this rattle is a sort of "diesling" type of rattle.  I have not noticed a loss of performance, but the sound is truly annoying.  What should I do to rectify?

 

 

 

 

 

Mine is an '00 5.3L and it has all the same symptoms that you mentioned. I'll agree, it's very annoying, loud like a diesel, and sounds like crap. I can hear the noise ricochet off of drive thrus, barriers, etc. Most days, I hear the lifter tick noise more than I hear the exhaust. It almost never gets quieter anymore, and it's always there. I haven't found any answers to get rid of it, either. I asked around at a local stealership, they pretty much said to live with it. Would ceramic valve covers mask the noise some? I just turn the stereo up a bit. I try not to think about it because it drives me nuts. :flag:

budhayes3 Senior Enthusiast

budhayes3

Posted
Posted

Someone here, or maybe over at LS1Tech.com was supposed to be installing a set of ceramic, or carbon fiber valve covers. Said he'd post his results...wonder whatever happened with that. Gonna have to do some searching....

gixxer Enthusiast

gixxer

Posted
Posted

I heard that one also, I just got my GM composite valve covers from Summit on Friday, Ill let ya know when I mount em up.

Rookie Enthusiast

Rookie

Posted
Posted

These trucks also have a check valve in the air pump/smog pump. These will rattel while driveing down the road. it sound as if the motor ahve a pre detonation concern.

jhm Senior Enthusiast

jhm

Posted
Posted

I had an annoying rattle/buzzing type noise that drove me nuts. The "service adviser" said his 'MECHANICS" traced it down to piston slap, long story short, I got the 6yr 100k warranty for free to"put my mind at rest". 10 months later, I cant take the noise anymore, 15k on the clock! I go back and they have a new service guy, he goes with me on a ride and hears it but dosent mention piston slap, they keep it a couple of days and figured it out- the 4wd selctor had a bad plastic guide that resonated and sounded like it was coming from the engine! No piston slap and a free warranty! Sometimes a noise is diagmosed not even close to the real cause.

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Latest Articles

  • Posts

    • Chuck FB
      2 speed transfer case optional now?

      By Chuck FB · Posted

      Yes, and also pulling heavy trailers or a large camper up steep grades as well as descending grades such as the more rustic off road camping locations and using engine braking with that low gearing as well as soft ground can just suck the power . I realize pickups these days tend to have an over all lower first gear ratio compared to automatic transmission pickups from years back so that has helped a lot in its ability in high range but there comes a point if in four wheel drive the torque runs out at the wheels, certainly with a gas engine. They don't put two speed transfer cases on pickups for a cool factor, they have a function if one needs that massive torque to the wheels that high range can't deliver. 
    • Grumpy Bear
      Grumpy Bears 2015 Silverado 2WD

      By Grumpy Bear · Posted

      Notes 7/18/2026   3,400 miles on this batch of Mobil 1 Euro 5W40 since the GDI pump replacement. Alcohol runs very clean when ring seal is tight and the sump isn't getting hosed with fuel. Checked oil level at fill up today as is my practice and grabbed a white Kleenex to look at the color. What color?  I was going to change it but.....  
    • Another JR
      2 speed transfer case optional now?

      By Another JR · Posted

      4 low is really nice on steep boat ramps. 
    • Chuck FB
      Gas Prices

      By Chuck FB · Posted

      Interesting, I suspect I would have fueled up in Lee Vining as the day prior I would have filled up either in Laughlin or near there and maybe again before I entered Death Valley and once out the other side late that evening as I kept on driving into the night up near Lee Vining. Next morning I most likely fueled up in LV before heading over Tioga Pass into ( as I refer to it as "Yose .... Mite" 😁 ). And again that was 19 years ago but the price then must not have jumped out at me like the 5 bill a gallon theme of nutty cult hippy country Big Sir or head so far up their rear Aspen. I'd be curious to know where the highest prices are in the lower 48, I probably would not be far off to guess somewhere in Cali forn ie. Coldfoot and Prudhoe bay may have those prices beat but that is a whole other world up there and when prices are more normal elsewhere that is about what they can be up there I believe in no mans land. Anyway interesting that the 395 corridor is hosing people and the thing is, its tourist season and its not like there are a lot of competition options when driving up that highway from what I could see. Yup, big ole Boaterhomes and various other RV's ahead and behind me at the Yosemite entrance gate and they have to get their fuel somewhere.  
    • Atlas
      Gas Prices

      By Atlas · Posted

      Those can be high, as well as the big California cities. The ones that will pop your eyes out are the 395 corridor on the Eastern side of the Sierra Nevadas. Lee Vining, $7.19 for regular and $8.89 for diesel is what the Google said right now.

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...