Jump to content

4l60e slips only when warm

00silverado17
 Share

Recommended Posts

00silverado17 New Member

00silverado17

Posted
Posted

Hey y’all, this is my second post on this forum. I just picked up a 2000 Chevy. 5.3 4l60e (I know shocking) and the guy claimed to have put a rebuilt trans in the truck, well then he claimed it was the second one he put in, in just a couple months. My guess is bad mechanic. Anyways. The trans shifts fine when it’s cold. All gears work perfect (which is when I test drove it) well when the truck warms up (roughly 150-190 when it starts) the trans slips in all gears, UNLESS it’s between 2500-3700 rpm. It grabs good then. I noticed it because I’ll start going from a red light, it’ll slip a bit and I’ll have to put more gas into it, and then it hits about 2500 rpm and it’ll grab and take off then when it hits about 3700 rpm it’ll start slipping again. It does this in every gear. At first I was thinking the trans pump thinking it wasn’t getting enough lubrication to all the parts. But then I thought it was low on fluid, well it’s fine on fluid. Then I thought maybe it was the converter because it’s the same one from the first rebuilt trans (supposedly). I’ll drop it off at a shop in a few days. But I’m sure I’m looking at a rebuild? I’m wanting to swap in a 6.0 over the summer, so I’m guessing I should go ahead and have a built one dropped in? Shift kit with vette servos? That’s what I keep hearing to do. Or should I just deal with it for now and wait for it to blow completely and do the whole engine and trans swap at the same time? Sadly I’ll have to pay someone to do it all for me cause I don’t have the tools or space to do it. But this 5.3 is also having “worn out” issues with oil pressure, as it’s the original with 262k on it (with a gasket rebuild on it supposedly). Thanks for the input in advance!!

Sharpz Enthusiast

Sharpz

Posted
Posted

A 5.3 is an awesome, long lasting motor, if taken care of.  If you plan on doing a 6.0 swap, you might as well just have the tranny rebuilt and be done with it.  It sounds like you bought someone else's headaches in this truck, but at least you will know now what you are putting in.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • Chuck FB
      Tire psi

      By Chuck FB · Posted

      You must have that upgraded gvw package which is only available or at least was in 2025 with the diesel engine for the 3/4 ton and that gave the truck physically the larger 12.0 ring gear rear diff and the 3500 rear spring pack. There is a difference in what the diff housing looks like externally as one tell tale and also your truck should have the upper overload spring pack and the frame pads that the pack goes up against.    The pressure the tpms system kicks the alarm in on a stock setting truck, that is a good question and was just from what I recall but I doubt I made any notes on it as I knew for the rear that it was not at all what I was after regardless either. Being that you have a diesel and if running on stock tires the minimum pressure on an empty truck seems to be around 50 psi from hearing of those that have weighted the front axle but the rear axle is very similar in weight to a gas truck and again a near empty truck on the rear could go down to 35 pounds at minimum. However the weigh scale is the proper way to know for sure as a guide.    As to changing the readings on the dash from metric to the US measuring system, oh yes that is done easily but what I was attempting to explain was that I can't pick and choose items I want to have in US and those I still want in the metric system at the same time as its either all or none. For example lets say you drove into Canada and switched your dash over to metric so your speedometer read in km an hour, well then your reading kilopascals on your tpms readout and your wife looks over and says what the hell is that saying in the tpms screen and you say "darned if I know, I think its Chinese" !
    • Chuck FB
      Some Assembly is Required

      By Chuck FB · Posted

      This is partly why I decided to have switched over to Amsoil SS as a way of hopefully preventing the buildup of the sludge/carbon on the pistons and clogging of the oil control rings and the carbon that would cause the compression rings to stick in their grooves as well as stay cleaner up top of the heads in the valve train in the first place, an oil that has tested better by third party testing over typical shelf oil and also doing my best to run relatively short OCI. However in saying that I don't think there is any way to easily prove the oil I was using prior allowed for a buildup at the OCI I was doing, nor in the other direction to make claims the Amsoil is keeping everything clean either. There really isn't a window into the engine is there to know anything for certain even if oil samples were taken for example that showed still healthy oil being dropped out of the oil pan other than engine tear downs that extensive and expensive testing of oils does to actually visually see what is really going on inside the engine. I wish there was some easy method of seeing what is going on but I don't happen to be aware of that if there is.  
    • jgaudet99
      Tire psi

      By jgaudet99 · Posted

      My truck is a ¾ ton but my placard also says 80 for the rear tires, I think I might have the upgraded suspension to the 3500 series maybe.   I put my air down to 60 and the light was still on, and there was no way I was putting over 60 psi in the rear empty and not towing because I knew the actual number Toyo gave me and I didn't wanna ruin the center of my tires!   And you actually can change it in the settings from metric or is and it will show kph or mph then when you go into your tire settings it will be either psi or kpa, but it would be nice to just change it directly on the tire psi page 
    • Grumpy Bear
      Some Assembly is Required

      By Grumpy Bear · Posted

      Common Sense Assembly   Your driveline is forgiving of the occasional mistake. It will even often forgive the random serious blunder. But it will not forgive a continuous bad habit.      What? Not everything needs to be a five thousand word essay.       
    • Grumpy Bear
      Gas Prices

      By Grumpy Bear · Posted

      We drove about 15 minute east today to visit a friend and saw a steep increase in price in the same county. About 50 cents a gallon steepper. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...