Engine rattle on startup

The sound is a rattle that is heard just after the engine is started. The technical background on this issue is that the timing chain tension has lost its ability to keep the tension and the slack causes the rattle in the engine. Thus, the timing chain may jump, causing the engine not to start. When I start the engine in the morning I get a rattling noise that last about 3 or 4 seconds. even after shut of for a few minutes it will sometimes rattle when start up again. Sometimes when I start it no noise. Any ideas as to what it could be. Do these engines have a history of chain tensor... Well a rattle sound when a car first starts then fades away is usually either lifter clatter or rod knock. Lifter clatter isn't that big of a deal if the engine is cold. Just means the hydraulic lifters have bled some of their oil out so they relax the valve lash until they are pumped back full of oil. Apr 06, 2014 · cause : left to sit for hours the oil drains down into the sump and the hydrualic tensioners and oil actuated vct sprockets become dry... it takes 2 seconds or so of cranking/ starting to build pressure back up and put full tension on chain again for it to run smooth. You hear the engine running after you turn off the ignition: Your engine is dieseling. This condition only happens to cars with carburetors. It is usually caused by an idle speed that’s set too high or excessive carbon in the combustion chamber. You hear a whistling noise coming from under the hood: Check the hoses for vacuum leaks. If the whistling comes from inside the vehicle, there’s probably a leak in the weatherstripping. Honda Hrv cold start engine rattle sound Post by joshv171 » Tue Feb 07, 2017 12:15 pm My new Honda make a rattle sound when it is cold start and it make more and more day by day. Well Honda has a service bulletin 09-010 Engine rattles at cold start up for about two seconds. only applies to all 2008 accord and some 2009 accords. this only happens when the engine has not been started for at least 6 hours. they say that the VTC Actuator must be installed in its unlocked position to avoid damaging its internal lockin pin. Looking at the engine from the front, measure exactly 1 3/4" clockwise around the balancer, and make a second mark. This is your 30* mark. Connect up your timing light, and watch your 30* mark as you increase the RPM's. Apr 05, 2016 · Engine noise/rattle when releasing throttle, and at startup. 05-04-2016, 08:45 AM. Went for a short drive (about 6 miles) and shut the car off in the driveway. A few minutes later went to start it back up and pull into the garage, heard a horrible clunking when the motor first turned over, followed by a rattle/knocking sound that happens after releasing the throttle when revving in neutral. Nov 09, 2018 · The rattling noise appears when you start speeding up from 0 to maybe 30 or 40 mph and then disappear after car speed surpasses 40 mph. In another circumstance, when your automobile is running at low speed the noise keeping coming out of car engine. Aug 01, 2008 · When I first start the car in the morning it makes a grinding rattle sound, like an old diesel transit. I changed the oil and filter because it sounded like valvetrain / tappets noise but it's still there after another 100 miles. If I stop and start the engine within 30 minutes it doesn't make the noise. If I wait over 1 hour it usually makes the noise again. The battery is a bit low, could it ... May 30, 2018 · My dealer said the startup rattle is not isolated to the Raptor. They have changed cam phasers on other Ecoboost Engines and mentioned the Transmission Aux Pump.They also mentioned that Ford just issued something on a PCM flash. My theory is this is isolated to early 18 builds as mine was built the first week of production. Aug 26, 2015 · Ok, I just bought a 2003 Mach 1 with 94k miles. Overall it is in really good shape but I have a engine rattle I am trying to diagnose. Mods are - catted prochamber and mac catback, 4.10 gears, intake spacer, jlt cold air intake, spec stage 1 clutch - the rest of the engine is stock. The... HI- I have the 2016 chief (dark horse). There is a rattling noise or engine ping when hitting a constant RPM... Dose anyone else have this issue? Not sure if it is the engine is pinging or if something is lose. The dealer does not seem to have an idea what the noise could be. and yes I am... You could remote start the car while on a lift and make the rattkle come and go just by applying pressure to the valve shaft. Probably a tolerance issue between pipe hole and valve shaft diameter. Had the exhaust replaced from the crossover back including rear driver side section. Jul 20, 2020 · As soon as I got the transmission oil changed, my car developed a rattling noise at start up (in morning) and sometimes at low rpm during drive. I observed that this rattling noise was mostly audible when the hybrid battery was depleted and engine converted to petrol. Aug 18, 2020 · If you hear a rattling noise right when you start up your car, there are a few potential causes for your rattling engine in Salt Lake City, UT. It could be “piston slap,” which is when your pistons have loosened a bit and are hitting the sides of the cylinder, or it could be engine rod knock, which is one of the more serious situations indicated by irregular engine noises. On startup it rattles (sounds like gears grinding) for a brief moment and then goes away. At idle once the engine warms up it rattles and then as soon as I touch the throttle it goes away. After I came back from a cruise and running it pretty hard I let it idle and noticed that the rattle noise was alot louder (painful to hear). My 2015 Forester has engine rattle at startup I attribute it to the upside-down oil filter refilling. It drains each time the engine shuts down and it refills at startup just as would a newly installed filter. Any engine damage that might develop as a result of this likely won't show up until after the warranty has expired.
" If your car engine is making a rattling noise on startup, idle or when accelerating you could have a faulty serpentine belt tensioner, a loose bolt on the mounting bracket, loose timing belt, rusty or broken flexplate, faulty harmonic balancer, loose fan blade, engine knock (pinging) or low levels of engine oil.

Ever since new, my 07 12GS right cylinder makes a either a click, rattle, or knock, depending on engine temperature, on engine startup. It also seems to getting louder (28,000 miles on the odo). It doesn't make any notable noise on cold startup.

The sound is a rattle that is heard just after the engine is started. The technical background on this issue is that the timing chain tension has lost its ability to keep the tension and the slack causes the rattle in the engine. Thus, the timing chain may jump, causing the engine not to start.

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I have a 2002 SL500 with 19k miles that I purchased about 7 months ago. Did not drive it a lot before winter came to Michigan but when I did the engine had a 1-2 second rattle at cold startup. Subsequent engine starts had no rattle. I originally chalked it up to just not being driven I did a...

The sprung-hub center setup damps out the majority of the power pulse variations, resulting in little to no rattle. Due to the frequency of the power pulses, slowing down the engine slightly more at idle by turning on the A/C and loading up the alternator with headlights and other electrical draw may increase the amount of residual rattle.

I noticed a "rattling" noise immediately after starting my car this morning. It went away after maybe 5 seconds or so. My car is an '06, 3.6L with about 80k miles. Otherwise, car runs fine. Any ideas?

Jul 13, 2009 · START UP RATTLE Some 2004 F-150 and 2005 F-150, Expedition, Navigator, F-Super Duty, and Mustang vehicles may have a rattle on startup that lasts 1 to 3 seconds. If initial pre-checks have been completed and the noise sounds like it is coming from the front of the engine, replace the VCT Phaser Kit. If the engine

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