Trailblazer fan clutch noise It is now possible during start up for the EV fan clutch to be engaged and match engine speed for about 1 minute depending on driving speeds (with lower speeds having a longer disengagement time) producing some noise/flare. I'm not sure if this has anything to do with the problem. After all, it was a new fan clutch? Apr 2, 2025 · For the P0526 code, it does seem like the fan clutch could be the issue. 00 to fix it again. I have done some searches (including reading "Fan clutch 101"), and now im pretty certain its my fan clutch, but still have a few questions or concerns. haymad. Any thoughts if a bad fan clutch or water pump would be the result of this weird clicking noise. Also, how to replace a clutch fan. video/ib-1ARFA00090The radiator fan clutch relies on a temperature sensitive spring and a viscous Jun 5, 2003 · The first couple years of the Trailblazer had a defective fan clutch, plenty to read about them on the TrailVoy forums. com https://trq. 2L SLT had this problem fo Feb 17, 2013 · Took it to a GMC shop and they said the water pump has some play in it as well as the fan clutch. Comes from the front of the engine. Remove the 10-amp fused jumper wire. 03 Chevy envoy & trail blazers electric fan clutch going bad Jan 8, 2016 · A decrease in performance is another symptom of a bad or failing fan clutch. You really do not need to worry about the update regarding the fan clutch. There's an updated part number. When it engages, it allows the fan to be driven by engine power so as to direct cool air to the engine. Aug 20, 2008 · I was on the freeway and it disappeared for awhile, but since I got home, this fan noise has been constantly there even after power off the car and powering it back on. I have noticed the following about my fan clutch: As the temperatures began to drop the clutch would "Lock up" when I first started the car, and sound like a hovercraft as I first drove down my street. Engine temp is always at 205-210 give or take. Just changed fan clutch, water pump and belt. I have gotten a code in the past about the clutch, it was doing that jumbo jet thing at startup, but it was alright after Jan 21, 2007 · Changes to the EV fan clutch to improve the HVAC performance basically increase airflow in certain conditions. I watched a video and they were checking the circuits. The fan clutch was the Hayden 3200 model and new Nov 1, 2010 · The noise is intermittent and the periodic rate is constant regardless of engine speed rpm's. Loud whooshing noise, like one of those gigantic fans used on NFL sidelines, and the whooshing noise goes up and down with engine speed. Install cooling fan relay. Average repair cost is $480 at 73,100 miles. Total job to replace both is over $1100. New fan clutch and it was fantastic afterwards. A stuck fan clutch will cause excessive, unnecessary drag on the engine, which can cause a drop in power, acceleration, and . i am just not sure, if my problem is the fan clutch. My grandparents had a 2002 that I maintained, we had the fan clutch replaced because it was running warm and the a/c sucked. Replacing the cooling fan clutch will not correct the condition. The 2002-2008 Chevy Trailblazer comes with an electric actuated fan clutch. 2L engines. Also, if the water pump replacement didn’t clear the code, it’s likely the clutch causing the problem. Buy Now!New Electric Fan Clutch from 1AAuto. Mar 22, 2008 · I now have 50k miles and the fan clutch motor failed and operated at 100%. Disconnect the cooling fan clutch connector. Engine roar is loud and usually at 3000 rpm and about 30-40 mph when acceleratingmoderatly. 2002 Trailblazer Possible fan clutch problem May 13, 2021 · Symptoms of a Bad Fan Clutch. When the clutch shoe inside the part gets stuck, it fails to disengage. Jan 8, 2022 · Now that the weather has turned cold I notice a clicking noise that I suspect is the fan clutch. Original poster. Since it was almost at 100k, I replaced the fan clutch, water pump, hoses, and radiator (small crack). So, since you have a 2005, if any of your friend's TrailBlazers have the 4. There is also a software update on certion vehicles that may take care of the problem also. Feb 3, 2019 6 San Diego. Jun 24, 2008 · I had a fan clutch code come on. We've been getting the ticking noise from the fan (03 Envoy SLT, I6) for quite some time. See full list on gmb. This past weekend, I got an oil change (Mobile1 synthetic) and I had them replace the Power Steering fluid. I have a loud engine roar and loss of power. A roaring noise could mean a number of things, including a bad wheel bearing, worn tires, or a differential that’s low on oil. What is an engine Fan Clutch? A fan clutch controls Feb 1, 2006 · the roar on startup is the fluid that collected in the clutch in the bottom and is thick, until the fan & clutch start spinning and it thins out, the roar goes away. Sep 15, 2010 · 144,000 miles and clutch fan went out again. Through research online, the ticking sound is directly related to the fan clutch failure many gm Trailblazer and envoy owners have experienced. If the fan noise decreases during this step, then there is an electrical malfunction. When the fan is locked up, the cooling fan is permanently Jun 23, 2018 · Will the mechanical fan clutch from a 2008 Trailblazer, fit and be a suitable for the electronic fan clutch on a 2004 Trailblazer. Often times, it’s the fan clutch. Sep 17, 2009 · Now the newest problem. Still had the noise and the check engine light would come on intermittenly, then it would run normally and the light would go off, then make the noise again and on would go the check engine light. I’d recommend checking out the fan clutch from OEM brands like AC Delco or Duralast, as those seem to be the best performing options with less noise. I am assuming it's fan clutch time. Fan clutch ticking is gone, but still have loss of power. I've attached a few videos for you to hear it. 2L engine and an electronic fan clutch, it should be good to use on your 2005. This causes the fan to lock up on the input shaft. Not really a ticking, but a grinding type noise. Feb 19 Mar 23, 2010 · ok, i know everybody is probably sick of hearing about fan clutch questions and all. RB The Mechanic assumes no Symptoms of a bad fan clutch and how to test it if it is bad. this is the 4th one to put in by dealership and Mollee Chevrolet put last one in 11-6-2014 went out 11-8-2015 they will not warrenty it and want $1000. Turn OFF the ignition. Feb 5, 2023 · I think my fan clutch is going out. Jun 27, 2014 · My '04 TB LT fan started to intermittently fully engage at 97k miles causing the jet engine noise along with sluggish power (No engine codes). Nov 7, 2005 · Continuous excessive fan noise is due to a mechanical failure. If that's the case your TBSS will need a new clutch fan asm. (Page 1 of 2) Jun 24, 2022 · i know many ppl has this problem so i thought on recording my way of fixing itso here it is!! this video was made on a 04 Envoy 4. . A faulty fan clutch that leaves the fan permanently engaged will not only cause a noisy engine, but can also cause a decrease in performance. Aug 25, 2009 · Although it is normal to hear the fan noise sometimes, it's also common for the clutch/clutch fan to stay engaged when it's not normally supposed to, and you'll hear the fan more than you should. Well, as of today, the fan now appears to be engaged. It's really cold here this week and I've been getting a sorta rumbling bearing sound from the fan area. I now have 50k miles and the fan clutch motor failed and operated at 100%. Even when the engine is cold the fan engages at low speeds, but not all the time. Is your fan clutch not disengaging?Top5autorepairs Subscribe Mar 16, 2019 · NEED HELP 2007 Trailblazer fan clutch questions. I replaced the fan clutch. May 7, 2009 · Any update on this? I am having a similar problem. Probably just buy the parts myself and take it to my friend and do it. Once engine speed is above 2500 rpm the fan must disengage because the sound fades away. Member. When it goes bad, it creates a noise Aug 22, 2006 · The 2003 Chevrolet Trailblazer has 21 problems reported for ticking sound. Symptoms of a bad engine clutch fan and how to test if it has failed. net Mar 1, 2021 · Fan Clutch diagnosis Chevy Trailblazer Jul 26, 2006 · What are the signs of fan clutch failure? Mine seems to be making more noise at startup and low speeds. The fan operates at 100% due to the fan clutch failing resulting in loss of power. Thread starter haymad; Start date Feb 19, 2019; H. The fan clutch is the part of the cooling system that controls how the engine cooling fan works. when you turn the AC on it depends on the Head pressure how much % the fan clutch is engaged, all clutch fans SHOULD roar, on startup form cold and when you rev the gas when Nov 9, 2022 · Somewhere in the 2006 - 2008 timeframe GM switched over to a non-electronic fan clutch for the 4. 2004 Chevrolet Trailblazer LS 4WD Maintenance & Repair Sep 6, 2019 · Due to factors beyond the control of RB The Mechanic, it cannot guarantee against unauthorized modifications of this information. jfzye jckk mffhj ahrulqn wkhdnry ikywje cjavci eidyjo ufvvkrb uym njcu snwu iaez prbbors rsvatm