- 01/15/2015
- 2 Min Read
- By: Anthony Peacock
4 Volvo Parts Worth Replacing Before They Fail
Seven years and four P80 Volvos have taught me there are some parts you don't want to let fail. These parts have either made me late or totally stuck - not something I like to admit considering Volvo's normally excellent reputation for reliability.
Brake Light Switch
Failure Point: 170,000 Miles
The brake light switch functions the opposite of a normal push button toggle, its default position is on instead of off when the actuator is 'up'. This switch failed on my 98 S70 overnight, and left the battery more dead then I've ever seen it. It took a jump start and some head scratching to realize what was going on finally have getting out and walking around the car I noticed the brake lights stuck on. They can be activated even if the key isn't in the car. Its a very quick part to change out that can be figured out on the spot (as long as you can fit under the dash). The switch touches the brake pedal arm so it should be easy to spot.
Fuel Pump Bump
Failure point: 225,000 Miles
FWD P80 Volvo fuel pumps are in a very accessible position, and for the experienced shade tree mechanic can be replaced in about 45 minutes (AWD is another issue). For the most part, these fail without warning. I went to start the car and it just kept cranking. After whacking the gas tank on the bottom at the passenger side the car started right up, but trouble was still looming. Fuel pumps 'freeze' while sitting still. It was fine on the highway, but after I drove and parked the car again it wouldn't budge. In the end I needed a tow and a ride for the four people I was with (ouch, I know).
Replacement pumps come in a variety of packages. When it comes down to what's included, I went for the medium option which worked really well. But if you want to make an even easier job out of it go for the full assembly. Whether OEM or aftermarket, there isn't a bad route to take. If I had to replace the unit for anyone's car but my own I would do the full assembly. Why? While the plastics in my unit were okay, they are fragile and breaking any part of this assembly would be detrimental to a potential "customer."
Throttle Body Hose
Failure Point: 160,000 Miles
Sealed & solid throttle body/intercooler piping are essential on a turbocharged vehicle. While enjoying some sporty driving in my '98 T5 I heard a loud pop come from under the hood. After pulling over I found the throttle body intake hose had burst off of the throttle body, leaving the turbo useless. I re-attached it, but found the old rubber very worn and quite thin. I replaced it immediately and never had an issue with it again. Silicone alternatives also exist for those running higher-than-stock boost levels.
Leaky Seals
Failure Point 190,000
The oil cap seal serves a very important function. Not only does it keep oil inside the engine, but it seals the engine allowing for crankcase vacuum. Though the most common symptom of a faulty oil cap seal are puddles of oil on top of the engine's cam cover. Replacing the oil cap seal is an affordable quick fix, and has probably already failed on your Volvo by the time you've finished reading this.
What parts do you regret not changing early?
About the Author: Anthony Peacock
Anthony Peacock is a small business owner and Volvo DIY enthusiast. He is an experienced videographer and editor with a long running reputation for owning and promoting Volvo cars and their many excellent qualities.
