Vt commodore thermostat problems. Carefully folded back the metal cradle to remove the centre moveable thermostat gate. You need to purchase a replacement connector/wire like in the link below. Found out it needed the heater tap replaced. Jun 13, 2024 · Hey guys so I just changed my thermostat and that’s something I never want to do again, I’ve just reassembled everything and tried to turn the engine over and it won’t go, I forgot to plug in a single cable but I can’t exactly work out where it’s meant to go? Jan 12, 2024 · So I’m having some problem with my cooling fans, I tried to jump the fans from the thermoswitch and only the high speed came on and not the low speed. SKU: 12571261-3 Genuine Thermostat & Housing for Holden Commodore VT VX VY 5. I was just wondering if I should check anything else or try anything else to get the low speed fans to come on. Apr 2, 2008 · Hey guys just wandering if anyone can help me with this problem. Just wondering, do I have to drain the coolant first? Holden VT Commodore Overheating and Coolant Loss Issue VT Commodore often faces intermittent overheating and unexplained coolant level drops without visible leaks. You can then splice the wires from the harness with the wires from the replacement connector. Learn how to replace a thermostat and coolant temperature sensor as I show you how to replace one in my 1998 V6 VT Calais but this video will work for a VT, VX and VY Commodore. 5K views 02:36 Introduction and welcome to all new followers & subscribers! Feb 18, 2026 · 20K views 00:46 Day in the home garage with the iron lion🛠️🦁 #holden #c Feb 16, 2026 · 1. Intermittent overheating with frequent coolant top-ups suggests a possible internal leak, such as a head gasket failure or radiator cap malfunction. Stopped the leak, but the water was full on boiling! I have replaced the Radiator (B. When the VT Commodore overheats, check if radiator fans activate at operating temperature. I have a 1999 VT commodore, every code possible is up on this bish, and the temp gauge doesn't work, and the fans don't turn off (unless Oct 29, 2023 · Identify and resolve cooling system problems in Holden and HSV models (VT-VZ, VE-VF). May 22, 2011 · After changing the thermostat in my car, the engine was still overheating so I decided to go to my local mechanic anyway the problem was somthing to do with the bottom radiator hose was swollen and blocked?? Mar 11, 2006 · Hey everyone, I know this is a really old thread, but I'm new to the Commodore scene and want to change the thermostat on my VP as it's running way too cold, so i'm assuming it's stuck. 5K views 01:20 WANTED - VR Dec 29, 2025 · Hello hello, just a quick question for anyone who might know. My Mrs. I've got the new thermo and gasket to replace it. Faulty fan motors, blown fuses, or damaged temperature sensors can prevent fan operation. Un-wound the spring. VT Commodore 1999 keeps overheating Car goes for about 20 minutes before the temp gauge will slowly rise, it generally when I accelerate hard, like going uphill at 60. Did the same the the Commodore thermostat unit and fitted the lower temp unit, to it. You can also purchase little shrink wrap cylinders that have integrated solder. New) and all the Hoses. 8 eco, I replaced the thermostat because the old one was rooted but the gauge says it’s over heating when parked or More videos you may like 01:53 VT Commodore sales brochure #holden #commodore #V6 2 days ago · 982 views 04:15 Garage walk around #holden #commodore #v8 Feb 22, 2026 · 5. Apr 23, 2024 · I’ve got an 03’ vy commodore 3. I drove the car around for a while, the thermostat is between ¼ and ½ (so it is working to some degree) but it’s not increasing above that level, and so the fan isn’t operating. 1988 VT Commodore V6 Overheating and Radiator Fan Issues VT Commodore often faces radiator fan failure and coolant leaks causing engine overheating. was driving our VT about 3 weeks ago and it overheated on her, due to a leak. Nov 8, 2011 · Purchased a New 160 degree thermostat to suit a AU1 Ford 6 (the lowest you can buy for Holden 6 is a 170 degree thermostat). Going downhill will do the opposite lol I have not heard any knocking noises or hissing coming from the engine when the over alarm goes off though. I have a 98 VT V6 which has new radiator, hoses, radiator cap and water pump and is now on its third thermostat. Anyway, I want to fix it as I need the car now. 7L Gen 3 1999-2003 Jan 31, 2010 · Hi, if anyone has idea's please help, VT '98 SERIES I. So I was driving my pos commodore and I noticed the temp gauge going up rapidly and shut it down and had it towed home. It has sat for the past month doing nothing as I hate it and rarely need a car in Canberra. Have used the bottle in the radiator inlet to create the head and let the coolant run continuously from the bleeder for a while, it ran out constantly so i closed her all up. Learn tips to maintain optimal engine performance and prevent overheating. But still got air in there, the heater Sep 9, 2017 · Your problems relate to the faulty coolant temperature sensor connector. Oct 7, 2014 · A lot of overheating problems in vn-vy motors can be caused by faulty coolant temp sensors, when you exhaust all other possibilities ( splits, cracks in hoses, loose connections and finally thermostat) head to the coolant temperature sender, mor often than not these lil buggers cause a lot of hassles, and for 25 bucks , they are cheap to Jan 31, 2013 · Still got air in the system after replacing a few items on the 98 V6 VT. fwp bju mat grh cxx fok rvg nka uar kdm hzf fct mcx knl vgo