In this Video I show the most common problem Volvo have seen on the all new 4 cylinder engines that is uses on all models, now they only make 4 cylinder engines.
Hello everyone and welcome back to the volvo guy channel today i wanted to talk about the common problems on the four-cylinder engines that was made by volvo and started in 2015 they start putting these in the xc60s and some of the s60s and so on until uh pretty much today they all use all four cylinder engines they have made some improvement on the engines and
Most of these problems are on the early model engines most of these problems has been repaired and taken care of later on in the years so most of this would include 2015-16 and a little bit of 17s and 18s and on most of the major problems were all taken care of but on today’s video i’m going to discuss some of the problems that i have seen and number one on the
List some of you might expect the oil consumption problem which is on the 2015 and 16s for sure they had this problem for some reason i don’t know why volvo have decided to use the same piston rings issue they had on the five cylinder engine previously and they use the same rings on the 15s and the 16s of those engines and which same exact problem on the 2017s
They have went back to the new design rings and as far as i know i have not seen any problems on the 2017s and on in terms of oil consumption they don’t do that and also the volvo’s been doing the 10 000 mile service which i personally do not recommend but the uh we haven’t seen this problem on the 2017s and newer engines which has been updated and got the new
Pistons installed in them so you won’t have to worry about this problem if it’s a 17 or noer engines they already have the good pistons but 15s and 16s they definitely had quite a bit of problems with those engines in terms of oil consumption and that was probably the worst problem you could run into if the oil consumption becomes very high so you’re putting one
Or two quarts every thousand miles that’s a lot of oil now the second problem that i have run into quite often and this one i believe it did move on past the 17 model years and this is only on the t6 models now when i say t6 volvo has used the same four-cylinder engine on the t5 t6 and t8s the only difference between the t6 and the t5 t5 fits only turbocharged
T6 would be turbocharged and supercharged and the th would be the same engine turbocharged supercharged and also the electric motor and that’s what they did is they use the engine output to determine whether it’s a t5 t6 or t8 previously t5 would have meant five cylinder turbo t6 would have been six cylinder turbo and t8 would be the v8 engine but what they did
Is whatever the output is they matched that to the numbers so t5 would be the lower output t6 would be mid-range and t8 would be the higher output including the the four cylinder engine and also the hybrid motor or the electric motor in the back so on the t6 models only where you have a supercharger and a turbocharger we’ve ran into a problem with the supercharger
Seals i have seen some supercharger failures but the most common i have seen is the seals they they fail and they cause vacuum leaks and then you get the engine code for running to a lean you check it get a check engine light and when you check the codes it has a lean code and that was due to the supercharger leak now the lean having a lean code problem there’s
Other things caused it but one of the most common was the supercharger which is i’m going to get into other things that will also cause a lean code but the supercharger leaks that was another major issue that i’ve run into many times and something to be aware of when this happens the supercharger have to be removed and then dismantle dismantled and all the seals
And gaskets would have to be replaced and then put back in the vehicle and that’s a lot of time uh consuming job so roughly eight to ten hours to remove the supercharger replace all the seals and put it back in so um it could it could get costly depending on the shop some shops charge eight hours some 10 some 12 depending on where you go and that would be the
Second problem that i have seen with those engines the third problem i have seen is fuel injectors those four cylinder engines they have went uh to direct injection and uh for some reason those injectors had a problem where they do not push enough fuel i don’t know if they get restricted or something goes wrong with them but you end up getting misfire codes due
To fuel injectors and we have to replace quite quite a bit of those and those i have seen them on 15 16s and also 17s i don’t think i have seen 18s yet with this problem but 15 16s and 8 and 17s had this fuel injector issues and in some cases you’ll have a misfire code and a lean code it wasn’t pushed enough fuel in the engine you would get a misfire and a lean
Code as well and that was one of the other issues with lean code was also related to fuel injectors normally if that’s the case you would have a misfire also a lean code and in some cases that was would repair both issues the fourth on the list would be o2 sensors the front o2 sensors would have either a slow response check engine light code or you would get a
Fake lean code the o2 sensor would be very slow to response after the throttle body closing and it would spike the fuel trims and causes the engine control module to think there that there is a lean code and um due to that slow response we have to replace those o2 sensors we have ran into some drivability issue and the way the engine runs it was hesitate shake a
Little bit and it was due to front o2 sensors i lost count of how many i had to do or if many uh how many i have encountered with a bad front o2 sensors between lean fake lean codes and running issues and um uh codes for o2 sensor slow response there was a quite often it happens i probably i would say a lot of people who drives these vehicles or own them or work on
Them have probably seen those come in with o2 codes or lean codes there’s a very very common problem now the fifth problem on my list here i decided to put it in here was the low side fuel pressure sensor as i mentioned they changed those engines to direct injection and for that they had to add another fuel pump for high pressure and also they had to add another
Fuel uh pressure sensor for the high side now for the low side they also had to keep that pressure sensor as well to measure and to read the low side pressure on the fuel and then there’s another one for the high side now the low side for some reason they used not so good sensors i have put a picture up here to show the old sensor in the new sensor and that old
Sensor was really bad and we had to replace them with the new style sensor and also the fuel line had to be replaced along with the sensor and we used to get a lot of fault codes for this particular fuel pressure sensor and that was another common problem now on the later engines this problem was already taken care of and the new engines comes with the new sensor
In them already but if you drive a 15 a 16 and some of the 17s they might already have this old sensor and it’s very simple to replace it’s not that hard it’s a quick replacement you can get a new sensor from the dealer with a line everything is under the hood quick disconnect sensor there’s not even any tools as needed actually to replace it but that’s one of
The other common problems i have ran into and most of these problems will cause a check engine light and uh the other problem was also kind of related to the fuel system was the evap purge line it would trigger a code for the pressure line and we had to replace the purge line and also the purge valve that was another part of it was actually a bulletin that volvo
Put out that we had to replace that as well and that was another common problem with evap now most of these problems are related to the engine there’s other problems would be related to the spa platform volvo because this engine they have used it on the older style body style volvos and that’s why i wanted to make a video just for this engine then in the future
I’m going to make a video just for the spa platform volvo’s some of the common problems with that particular platform i believe this is number seven a common problem i’m going to put some pictures up here oil leaks and what i have noticed with these oil leak problems the crank sensor or the the crankshaft the front seal they used a plastic cover as you can see
In those pictures they pressed the seal on the cover and then you take the entire cover off and back on and when they pressed the seals on for some reason it wasn’t pushed all the way flush and one side was actually raised and then when they put the crank pulley that the timing belt rides on that drives the belt it was the back of the pulley was rubbing on that
Seal and i’m gonna put these video pictures in here to actually look and see where those uh pulley was rubbing on the seal now this particular problem caused damage to the pulley and the seal and it would end up leaking oil and we had to remove the timing belt the timing belt cover inner and outer covers and replace that seal to take care of this oil issue that was
Another very very common problems what we ran into that was causing an oil leak and that was the seal and in that case as i mentioned we have to replace the seal and replace the pulley as well and that requires pretty much taking the entire front side of the engine apart including the vvt the camshaft pulleys and that cover that behind the pulley all that entire
Cover has to come off in order to get that large plastic um housing let’s say and with that cls part of it as comes in one unit in order to get that off you have to remove everything off the front of the engine to replace it which is that’s a very uh costly to repair also the timing belt would have to be replaced since oil gets on it you can’t reuse it and that
Has to be replaced as well and that was another major problem i’ve seen on those engines those also this particular problem was on the early engines versus later engines i don’t think i’ve seen any of this problem on 18 or lower for this particular oil leak now the other problem number eight would be the balance shaft those engines they used two balance shaft as
One unit that it was bolted to the bottom of the engine and those balance shafts used to make noise and uh we had to replace those balance shafts and the oil pan wasn’t easy to remove as the older engines it was a lot of work i was involved into it a lot of adjustments needed and that was another common problem was on the early engines as well i did not i this
Particular problem was strictly on 15s and 16s 17s and on did not have the balance shaft problem so luckily this is one of the problems got fixed on fixed early on uh with that engine which is that helped for the long run that’s not that’s not an issue that you know you wanted to run into just a lot of work involved into it and a lot of tools needed most of these
Repairs always require some special tools for the exception maybe the the fuel injectors and and the fuel pressure sensor but the rest of them they all require special tools and the lost problem i’m going to mention here is the pcv box this is i i don’t think this is a particular issue as common with this particular engine i think it’s all volvo engines that use
As this box they’re prone for these boxes to go bad and when they do they cause a belt like a belt tripping noise and it the noise comes from the crank pulley area or the the harmonic balancer area and the reason for that because the breather box will pull so much vacuum it’s trying to pull air from anywhere and when it starts to pull the air from the crankshaft
Seal the front seal when the air passes by the edge of the uh the seal it actually makes that noise and as the engine running when the noise is happening if you open the oil cap the noise go away because it’s pulling the air now from the oil cap versus the crank seal and for that issue we just have to replace the breather box on top and that was a very easy repair
It’s not really that big of a deal but sometimes you run into it sounds scary i have had um other shops contact me and after they replace the vibration dampener replacing belts and pulleys and everything else they call me and then ends up being just a breather box unfortunately so this is another problem that is just annoying but if you know what you’re doing if
You open that cap it might save you a lot of headache and heartache so i wanted to bring that up and mention it for you guys to just you know just to keep that in mind there was one more issue but i believe that was a recall on those engines um the coolant had coolant leaks from the coolant bottles and the um the overflow hoses that it ran behind the firewall
And they’re they’re a little bit pain on their place on those engines especially the one with the supercharger but those been recalled and been replaced and the reason they had to recall them because they would leak antifreeze on top of the catalytic converter and the cat converter had a cover heat shield that had some type of materials to stop the heat from going
Past a certain point and when the antifreeze would leak it would actually go inside that underneath the metal shield and then it gets so hot it would actually combust and catch on fire so that was one of the important thing that’s why it was put out as a recall and those pretty much were repaired and those were specific onto the xc90 2016 that we had to repair that
Particular problem was on this four-cylinder engine but only on the new platform which is the xc90 in 2016 and i’m pretty sure most of these has been repaired but if you’re if you’re not sure if it’s been done if you have a 16 xc90 or an xc60 or not xc60 but just an xc90 if you’re not sure you can always call the dealer with a vin number you can get hold of me
With the vin number i can check it out on my end as well if to see if there’s any open recalls on that particular vin for that coolant line and um i think that will be it for this video uh most of these problems are like i mentioned they’ve been repaired but some of them did carry on like the fuel injectors and and the supercharger i think most most of the things
That carried on but um most of the rest of the problem just again repaired over the time just looking at some things and volvo updating those engines now you know if you have any questions you can just or if you have any concerns or if you ran into any of these problems on your volvo leave a comment below and if you have any other questions i could get back to
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Transcribed from video
Most common Problem Volvo new 4 Cylinder engines By The Volvo Guy
