Dodge 57 hemi engine rattle high rpms in car

I bought a 11 Ram with the 57 Hemi a month ago with 52k on it. The 57L Hemi code name is Eagle replaced the 59-liter V8 LAMagnum engine.

Its honeycomb-style core superheats unburned gases.

Dodge 57 hemi engine rattle high rpms in car. 2014 1500 with 150k miles 57L HEMI Issue. At cruise 7th or 8th gear 70mph on the highway my engine has started a tachometer hiccup about every 4 seconds very constant cadence where the engine will increase RPMs by 100 for a split-second then return to normal. Second opinion Hello I have a 2017 Ram hemi 57 making a intermittent rattle noise when accelerating while in drive.

Where exactly do you think the noise is coming from. And how long has this been going on. For about a 4 weeks.

The Check Engine light on or flashing with misfire codes would make it more definite. What happens on 2009 57L HEMIs specifically cop ones is a lifter roller seizes and wears out a cam lobe. At higher RPMs there isnt enough lift to fully open the valve causing a loss of power.

Sometimes the lifter then spins in its bore when it happens. 4 Common HEMI 57 Problems. In no specific order four of the most common 57 HEMI problems are.

Multi-Displacement System MDS Misfires. A few more general notes prior to discussing each of these common faults in-depth. Simply because we refer to these problems as common does not mean every 57 will experience them.

If the exhaust bolts are fine and your 57 doesnt have an exhaust leak the most likely reason behind the tickingtapping noise according to some mechanics is inadequate lubrication of the hydraulic roller lifters. At first it starts as a ticking noise and then it gets worse and worse until the engine starts to misfire on hard acceleration. The most common engine rattling at idle isnt an engine problem at all.

What youll hear is a clattering tinny metal noise when you idle. The catalytic converter is an emissions control component in your exhaust system. Its honeycomb-style core superheats unburned gases.

My cars rpm goes high and sometimes it works normally. When high the car stutters and almost dies off in third or fourth gear when acceleration pedal being pressed decently. High RPM stays around 1500 and doesnt fall when car isnt moving or accelerated.

But sometimes it drives completely fine with no noticeable issues. I bought a 11 Ram with the 57 Hemi a month ago with 52k on it. It doesnt idle smooth and even when the rpms are up at cruising speed the rpm gauge jumps up and down by about 100 rpm.

What worries me even worse is at cruising speeds when the truck is under a small load ie going up a slight hill and not in MDS there is a pretty loud rattling noise coming from the engine. Low RPM high load is the most the cars are exposed to. This is where STKNK will show up first on a properly tuned engine.

Ditto on cleaning the Throttle body and fuel system. This is where a Predator is worth its cost. Make sure you have the proper viscosity oil 5.

Right now the valve springs and push rods limit the 57 from turning very high RPMS. From articles I have read the 57 was tested to be good up to 6500 rpms after that springs and push rods can go. I changed my rev limiter when I got my predator to 6300 rpms.

Youre hearing the Hemi tick where some of the lifters are noiser than others. It occurrs on 57 and 61 engines - and turns up on some 64s. Some do it some dont from what Ive read about this - mine doesnt.

It may be due to lifters that bleed down too fast and the extra clearance makes the noise. You will also notice a very small throttle miss once in a while when the motor is cold-or hot also if you rev the motor a little when its knocking by 200 rpms the knocking goes away. Now if you rev the motor a little when its cold 2000 rpms and let off the throttle you will hear the exhaust make a pop pop pop like glass packs on a old hot rod if you blip the throttle.

This is from the adaptive learning cranking up the fuel trying to keep the car. The 57L Hemi code name is Eagle replaced the 59-liter V8 LAMagnum engine. In the next couple of years this 345 Hemi engine became available in numerous models produced by Chrysler.

Dodge Durango Chrysler 300C Dodge Magnum RT Jeep Grand Cherokee Dodge Charger and others. Lets take an in-depth look at the 57 Hemi engine design its common problems reliability and longevity. I tried starting it a few more times last night and it started normally idling at whatever it is supposed to 600-ish rpm.

Then I go start the car this morning after it cools down overnight and the same thing. Its idling at like 1300 rpm or so until I put it in reverse for a sec then back to neutral it. Theres been some information on the web and at least one fairly in-depth article on the 57 in a auto magazine sorry cant remember which one.

Its at the barbershop. One thing that I do remember is that the 57 hemi produces just over 300 lb. Of torque at idle speed and maxs at 375 at rated speed.

2005 Dodge Durango Hemi 57 with Hemi tick. I noticed the Hemi tick after switching to a non-synthetic oil. I used full synthetic oil until 140k miles.

After that I tried regular 5w30 to save money. After 1k miles I noticed the tick when the engine was cold so i tried synthetic blend and now the tick is gone. Diablosport Tuner is an interesting option for owners of RAM 1500 equipped with 57 Hemi 09 - 14.

This little guy will help with increasing the horsepower and torqueIn my opinion this is currently the most affordable and in my experience the most easy to use tuner that you can buy for this truck. The HEMI is looking more like a tough sell these days. Manufacturers cant leave any engine alone when its being shared among other platforms.

The first gen 59L used electronics from the Jeep Grand Cherokee 59 LTD that required certain Dodge 59L V8s to run on 91 octane fuel for only a.