If your mileage is over 80k miles and it has never been changed, then no need to check the condition of the fluid. It is time to change.

Okay, good info which changes how you will approach this. It will take some new parts since you are basically catching up to the assumed non-maintenance of the vehicle and some snake oil. So they had it for a year, how did it drive right after they bought it? Do the fuel pressure sensor first. See i...

Okay, I cannot remember your "color cars." Just say what year and engine as that carries a lot of information (you can put them in your signature too). Blue pill, red pill, don't know what is in each, lol. If you are used to Hondas, then you will understand that you can get cat inefficienc...

Sounds good. Looking forward to the video. Also add to "how" you start the car. Put the key in the 2nd position and wait 5 seconds or more. If there is a fuel flow issue due to the fuel pump, this will give it a chance to pressurize the lines before starting. If that helps, then it might b...

Wanted to add a test for the bushings that doesn't do any damage and does not require special tools/diagnostics. I did this on someone's XC90 and it confirmed aftermarket bushings were the culprit for brake pull and drift/sway where overcorrection was needed. Find some rubber you can fit into the cu...

Greetings! On a recent trip, I noticed our 2004 XC90 AWD would act oddly when trying to pass on the highway or accelerate up a long hill. Upon accelerating, the engine would first lag and then rhythmically lurch (lurch/lag/lurch/lag/etc.). If I ease off the accelerator, it would resume running norm...

Sounds like you already explored perhaps the blower might be the issue. The resistor could also be an issue. Depending on your mileage and usage, might be a good time to replace both. https://www.youtube.com/watch?v=urdwPD6G43A As far as not getting hot in the cabin, is that an air temp issue or an ...

There are numerous very good reasons why you should time or align the timing marks. One, you have baseline to reference in case things get out of alignment. Being off by a tooth has happened to people because the VVT allows for some movement. If you are too off, then you can bend valves. Two, belts ...

Always align the marks and the paint on the belt/cogs can be used as a backup in case things get out of alignment. I like to put paint pen marks on the actual timing marks so it is easier to see. Then as you check the rear cog/sprocket alignment (closes to firewall), use your phone to take a pic. Th...

For coolant, it’s wise to change it since you will be draining a good amount and consider the age of the coolant. In the XC90, I personally changed my thermostat without removing the intake since there is room. I had a small extension and can reach in there no problem. I might have used a flex elbow...