Monday, June 29, 2020
How to remove wax from plastic trim
Especially XC70 has a lot of dark plastic trim. It's difficult to wax your car without getting wax on the trim. And the wax is pretty difficult to remove afterwards. The trims are textured, so they lock in the wax. Soap and water does not remove the wax residue. But here is an easy way: Use a white pencil eraser!
Push pin clips in wheel arches
The wheel arches has a one time clip that you have to drill out, if you want to remove the bumper or the plastic arch.
When putting the parts together again, the push pin clips are very useful here. You just have to use an 8 mm drill to make the wholes a bit larger. These clips are cheap on Ebay, and you can use them over and over again.
This is especially useful on later models, where you have to partly disassemble the bumper to get to the right headlight. You have to take out this headlight to change some of the bulbs on the headlight assembly.
The Volvo P2 achilles heel?
The Volvo P2 generation are robust cars that can handle long mileage. One reason is the very good rust protection - galvanized with a thick layer of zinc, protecting plastic trim, and several components in the undercarriage are made out of aluminum, including the whole subframe both in front and rear.
However, the Volvo P2 has one achilles heel, and that is actually rust. The front strut towers may start to rust on the underside, and if untreated it will continue to rust until the rust is visible from the top, under the hood. Then it is rusted through, and very difficult to treat. This may be the end of the car.
Here is a good video explaining the problem:
However, if you inspect the strut towers once a year and remove rust before it grows, you may keep your car for a long, long time.
The inspection can easily be done, but since the rust tend to start on the least visible spot, you have to use a mirror or sit inside the wheel arch to be able to see it.
A rusty strut top mount is used as an explanation of this rust problem. However, I believe there is one additional source to this rust problem. If you inspect the tower you will find a gap where the tower "ends". This small gap will get filled with dirt, water and salt. In time this will make the tower start to rust from the bottom, all along the gap. The rust will spread upwards, meeting the strut mount rust that will spread downwards.
Both earlier and later models are vulnerable to this rust from the tower bottom. Here you can see a photo of where the rust starts:
Saturday, June 20, 2020
Check your alternator brushes
If you have never checked your alternator brushes, it could be a smart thing to do. The brushes wear down, and at a certain point your alternator will stop charging. And that will probably happen in an inconvenient time, at an inconvenient place.
The brushes sits on the regulator, and the regulator is mounted on the alternator. The access is pretty easy. Unscrew some bolts and screws, unplug some connectors, and pull out the regulator. Just remember to disconnect the battery first, or else you may find yourself in big trouble.
A brand new regulator on the left side, and an old regulator with short brushes on the right side. The brushes should be minimum 5 mm.
Earlier and later models have different regulators, so make sure you buy the right one. If you are really into money saving, you could actually try to resolder new brushes on to the regulator. However, these regulators are not expensive. But some of the Volvo/Bosch alternators can be very expensive.
The length of the regulator brushes are never measured at services, so if your alternator is old, you could have a regulator with short time left. Just saying...
Friday, June 19, 2020
How to override shiftlock on AW55-50 when battery is disconnected
Automatic transmissions often has a safety feature named shiftlock, which prevents you from moving the gearstick from Park. When you push the brake pedal the gearstick will be unlocked.
This is inconvenient when performing mechanic works on the car, or if you have an electronic failure and have to tow your car.
So how can we override this? This guide will show you how to to it on AW55-50 transmissions.
On earlier models, you simply pull up the cover around the gearstick. Inside you will find a white thingy you can push down to release the lock. You can feel the button as soon as you put your hand inside.
2002 Volvo S80 |
On later models, it is almost the same thing. You could remove the cover around the gearstick, but it may be easier to remove the side panel on the left side of the gearstick. Down at the bottom you will find a yellow thingy that has to be pushed backwards to release the shiftlock.
2005 Volvo XC70 |
Thursday, June 18, 2020
Faded Bi-Xenon lamps
On the later models Volvo changed from glass to plastic headlights. Volvo claims the plastic is stronger against stone chips. But in time the plastic will fade and become cloudy.
I only know of one retailer that sell these lenses, and that is Vparts in Sweden: vparts.se
Two new lenses costs about $200.
This is my headlight before I started working:
And this is after:
Wow! What a difference. You don't really comprehend how faded they are until you put on the new lenses. The work involved cutting the plastic and old glue, heating the remaining old glue and pulling out the rest of the pieces.
It's a messy job and takes a couple of hours for each headlight. But it's well worth it. The important thing is to remember using gloves and not touching the chrome. Use compressed air to clean it before you glue on the new lens.
Wednesday, June 17, 2020
Soft subframe bushings?
If you experience improper wheel alignment, clunking or an overall uncomfortable and unsafe condition especially when braking, this could be related to soft or broken subframe bushings.
These bushings are not filled with rubber, but created with a gap on each side to prevent noise and vibrations. However, in time these bushings can get soft with too much play, or the rubber may brake completely.
Replacing those bushings is a huge job, and you have to use a press tool. But if you not wait until they crack, you may save those soft bushings by using inserts. That is a cheap, easy and quick fix. Note that the inserts may cause a bit more vibrations.
If you are mounting these inserts, you may as well replace the subframe bolts. Some of them get pretty rusty because of winter time.
Tuesday, June 16, 2020
Two must-have tools when replacing the rear wheel bearing
Replacing the rear wheel bearing is a pretty straight forward job. To get access to one of the screws to the bearing hub you have to disconnect the shock absorber. Even then you are not able to remove the screw completely - only loosen it so you can remove the hub. The hub itself is pressed in place by the hub bolts, and rust makes it even more stuck. So a slide hammer makes the removal pretty easy.
Of course, you can take a sledge hammer and just hammer away on the hub itself. But I like the feeling of hammering things in the right direction, not to put any extra stress on the other components.
If you have disconnected the shock absorber for a job like this, or for some other reason, you will discover the difficulty in reconnecting the shock absorber. The spring has a lot of tension and is pressing in the opposite direction of the wheel hub.
There is one technique that allows you to reconnect the shock absorber without asking for help from an assistant. This technique is actually mentioned in VIDA. That is by connecting the control arms together with a tension strap, and pull the control arms toward each other. You do it like this:
I suggest you get the strongest tension strap you can find. I used a large 9 metric ton strap, and I had to use some effort to get it to the last "click" where I could reconnect the shock absorber.
If you don't want to have your head between the control arms while doing this, you can use your foot to push the strap handle, and later you can use a long crowbar on the locking mechanism to release it.
Monday, June 15, 2020
Replacing front bushing in rear trailing arm - the hard way or the easy way?
The rear wheel hubs are secured in the forward direction by the trailing arm. The front part of the arm is connected to the subframe by a bushing. The old version of the bushing looks like this:
It's a rubber bushing with gaps on each side to prevent vibrations. However, these bushings tend to get soft in time, with a lot of play. Or the rubber may break completely. This will allow the rear wheels to begin steering, especially on tracked roads or when cornering. The car may start to wander from side to side and you get the feeling that you will lose the control of the vehicle.
Volvo upgraded this bushing. Now, the bushing has no gaps on each side. It is completely filled with rubber. If your bushings are bad, you want to replace them.
The bushing itself is cheap. But to get to the bushing, you have to face the following question: Do you want to to it the hard way, or the easy way?
The common way, the official way according to VIDA, is the hard way. The problem is that the bushing sits in the subframe, not in the trailing arm. The bushing is in a tight spot, so you are not able to access it with conventional pressing tools. Therefore VIDA calls for removing the exhaust system, propeller shaft (on XC70), hoses and pipes connected to the subframe, and to lower the complete subframe.
Wow! My Volvo dealer offered to do the job for $30 in parts and $1000 for labor. If you choose to do it the hard way, you can watch this YouTube clip:
Still reading? Oh, you want to do it the easy way?
The easy way involves no press tools and not lowering the subframe. Instead it involves a different kind of bushing. A 2-part PowerFlex bushing:
This bushing consists of 2 polyurethane parts. You press each part in place, from each side. And then you push in a metal tube that goes through both bushing parts. You need 2 packs to cover both sides.
If you choose the easy way you can do it like this:
Remove the wheel. Disconnect the rear end of the trailing arm. The hub has some tension, so it will jump off. Then disconnect the trailing arm completely. If there is a bracket that prevents you from accessing the front bolt, you have to loosen the bracket.
Use a reciprocating saw to saw out the old bushing. This is the most difficult part. You don't get a straight angle on the saw. You probably are going to scratch up the bushing housing, but hey - it's aluminum...
Clean the housing and grease it up with the grease that comes with the new bushing. Push in the new 2-part bushing, either by hand or with a polygrip or something. Grease up the metal tube and push it inside the bushing.
Connect first the front end of the trailing arm. To manage to connect to rear end you have to use some force. I used a breaker bar to force the hub forward. On this picture I use a screwdriver to demonstrate how I did it:
Insert a flat and wide breaker bar like this and push downwards. After this job is complete you should get a 4 wheel alignment. The final result looks like this:
The bushing is a bit more expensive, and you have to use a reciprocating saw. But this way is WAY more easy!
Sunday, June 14, 2020
Control arm screw
I had to replace the right control arm. One of the screws is in a tight spot. VIDA says you have to unscrew the right engine mounting and lift the engine to reach this screw.
I managed to get a handle on the screw, but only with the handle pointing backwards. I addition the screw was insanely tight. I managed to loosen the screw in an easy way without lifting the engine by using a jack, like on the picture. This may or may not work on your car, depending on which engine you have.
Saturday, June 13, 2020
Headlight wiper renovation
Earlier years have headlight wipers. In time they look ugly like this...
The wiped blades are cheap. But the wiper arms I believe you only get as OEM parts, and they are really expensive. So if you want a good and cheap fix, you could buy a 20 mm heat shrinkable tube and put on. Make a cut for the washer hose, use a cardboard to shield the bumper from the heat gun, and start heating...
Make a cut for the wiper blade, and the final result is this:
Thursday, June 11, 2020
D5? Check your EGR mixer...
If you have an D5 Diesel engine with high mileage, you want to check your EGR mixer. Here you get a buildup of gunk from the air that goes to the engine. Inside the EGR mixer the cold air from the intercooler mixes with the hot air from the EGR. Some say this is the cause of this gunk buildup, and some disable and blank the EGR. Other say that the gunk will just build up anyway. I think this take long time to build up. But after 250 000 kms / 150 000 miles, you could have a lot of gunk.
It's a bit messy, but not a hard job. However I would recommend to disconnect the battery first because it is easy to short circuit the engine starter in that area.
Wednesday, June 10, 2020
How to disconnect and reconnect your battery
Just disconnect and reconnect, right? Nope...
Some claim to have experienced Climate Control Module malfunction after just disconnecting and reconnecting the battery. If you you pay attention, you can notice the sensor fan running behind the small grille in the climate unit. If you close the door and wait for exactly 1 minute, you will hear a relay click and the fan shuts down. I would recommend to wait at least until this fans shuts down before you disconnect the battery.
When I open the driver door on my 2005 XC70, the fan starts again. I advice to close the door, and then wait at least 1 minute. The tailgate door can be open, so you can actually sit in the back and wait for the click sound.
Even so, VIDA states the following:
Warning! The SRS (supplemental
restraint system) is active for a certain time after the power is cut. Therefore
wait three minutes before starting work.
When reconnecting the battery, VIDA says you have to put the key in position II before you reconnect the battery. I guess this helps to drain the voltage spikes in a way. This is what VIDA says:
Warning! The key must be in
position 2. No one must be in the car when the battery is connected. This is a
safety precaution in case an airbag module activates when the power is
connected.
Tuesday, June 9, 2020
Welcome to the Volvo P2 blog
Welcome. This is just a blog about Volvo P2 generation. That is Volvo S80, S60, V70, XC70 and XC90. Normally from the years 2000-2007. Earlier years of P2 will be up to 2004, while later years will be after the facelift that came in 2005.
The posts on this blog is based on my personal experience and research. You may experience that some of this information may not be accurate for your Volvo. Any use of this information is on your own responsibility.
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