CRDi Maintenance Questions & Other Discussions [Thread]

[drey]

Since my belief says CRDi's are hard to maintain, and not so good in the long run compared to conventional diesel engines.

Let's discuss things here that can help CRDi people on maintaining their engines with their own hands just like what other people do in conventional "old school" engines. This thread will also serve as an aid to CRDi owners of 3 years or more.

I hope you'll support this thread.

I have a few questions to ask myself.
1) Can you do your own regular PMS at home with CRDi engines? Given with complete tools of course.
2) ...

[XTO]

Price range ng mga filters (oil, and air) ng mga crdi’s. very essential kasi ang mga ito at ilan ang oil capacity ng 2.2 – 3.0 crdi engines?

baka balang araw magka crdi na rin ako thanks..

[niky]

PMS? If it's just oil and filter changes, yes, of course... but that invalidates the warranty, and if the warranty includes the injectors, you don't want to do that.

From people I've talked to and from what I've heard, CRDi injector replacement or cleaning can happen anywhere between 100,000 to 160,000 kilometers, unless you have the infamous D4D issue, which can strike as early as 20,000 to 40,000 kms. (so far, apart from ion tsikot, I've only met one or two owners who have this)

Injectors are supposedly a 30,000 peso item, but I'm not sure about this. I'll take my Dad's Starex to Hyundai and check this out. It takes two or three clicks to start nowadays, but I'm not sure if it's a fuel thing or a battery thing... it drove just fine when we borrowed it, but the large amounts of provincial-grade diesel that go through the tank (Cavite, Batangas, Pangasinan, etcetera) can't be good for the injectors.

[mikey177]

.. it drove just fine when we borrowed it, but the large amounts of provincial-grade diesel that go through the tank (Cavite, Batangas, Pangasinan, etcetera) can't be good for the injectors.

You might have inadvertently loaded fuel at a station that is prone to flooding. I can vouch for the Petron stations in Dagupan, Urdaneta and Tarlac City though. My CRDI Starex almost always gets fuel from these four outlets and it has gone 75,000 km already without a problem.

[Dieseldude]

Since my belief says CRDi's are hard to maintain, and not so good in the long run compared to conventional diesel engines. Anything we are not familiar with is difficult. In time, and through this thread, we can hopefully familiarize ourselves on CRDI (common rail diesel technology). I can help you guys as I've had my common rail training with Bosch in Germany. We have already seen these at our workshop, and have done tests & repairs on them.

Let's discuss things here that can help CRDi people on maintaining their engines with their own hands just like what other people do in conventional "old school" engines. This thread will also serve as an aid to CRDi owners of 3 years or more. I hope you'll support this thread. Yes we will, and I'm glad you started this off.

I have a few questions to ask myself.
1) Can you do your own regular PMS at home with CRDi engines? Given with complete tools of course.
I beleive we can, but in a limited way. PMS is quite a large field to discuss. We can do it slowly, one at a time. Do you have any specific question for now?

Great thread..... Bye,

Dieseldude

[4JGtootsie]

I agree with Dieseldude. during the earlier years of EFI on gasoline engines people where hesitant to buy a vehicle with efi. Now wala na yatang hindi EFI na gas engine. CRDi I firmly believe will be accepted not by choice but as a must.

My question to everyone is why are CRDi more powerful than conventional diesel fuel systems with the same displacement?

Does the added power and fuel efficiency come at a really high price in the long run?

Can CRDi engines last as long as the old diesel engines?

[pup2]

I agree with Dieseldude. during the earlier years of EFI on gasoline engines people where hesitant to buy a vehicle with efi. Now wala na yatang hindi EFI na gas engine. CRDi I firmly believe will be accepted not by choice but as a must.

My question to everyone is why are CRDi more powerful than conventional diesel fuel systems with the same displacement?

Does the added power and fuel efficiency come at a really high price in the long run?

Can CRDi engines last as long as the old diesel engines?

Dahil mas mataas ang pressure pag inject ng diesel at mas pino ang atomization ng fuel pag ignite nito kaya mas malakas at mas efficient ang common rail, not to mention relatively less vibration and noise from being computer controlled. Whether it is as durable is another matter pero given time to sort out the bugs, palagay ko eventually it will be. Ewan ko nga lang kung kelan yuyng eventually ...

[4JGtootsie]

Thanks pup2.
Another question to everybody.
Who was the second car manufacturer in the Philippines to sell CRDis. And how is this engine fairing?

[SaberRider]

CRDi are not only more powerful now but with the introduction of the VGT, Variable Geometry Turbine mas lumakas pa sila. Imagine a CRDi 2.5 turbo-intercooler with around 140-145hp and on it's generation now with a VGT it's packing nearly 180hp on stock with the same fuel displacement.

I even know of CRDi vehicles with VGT that is just 1.8- 2.0 liters but already packs 185hp.

[totoybato]

This is a very good thread for us, crdi vehicle owners.

I've noticed that since the introduction of the biodiesel blended fuel, there has been a noticeable change in my ride,medyo di maganda effect, particularly with regard to noise , vibration and smell of the exhaust, as compared when i was still using pure diesel , which i buy from only one gas station. I switched to another brand a few months back and the noise and vibration significantly decreased. Last week, i drove to baguio and on my way back, i was forced to gas up with another diesel brand worth P500 since there was no gas station I know along the way with the brand i am currently using . Sa toll gate pa lang, ramdam mo na agad na lumakas ang vibration, so nagpakarga agad ako ng full tank pagdaan ko dun sa usual na gas station ko, hoping na ma dilute yung other diesel brand na ipinakarga ko. Just this afternoon, eto na naman yung vibration (madami pa yung pina full tank ko) at napansin ko din na may white smoke na kaunti na lumalabas dun sa exhaust pipe.
Try ko bukas na linisin yung air filter, or palitan na din although kapapalit lang nito, about 7K Km ago. By the way, my ride is a 3 1/2 tears old 2wd casa maintained tucson with almost 49K km reading, and i religiously follow the manual as regards its regular servicing. Hindi kaya dahil sa dirty fuel ito ?

[Dieseldude]

Thanks pup2.
Another question to everybody.
Who was the second car manufacturer in the Philippines to sell CRDis. And how is this engine fairing?

First to come out was Hyundai's Starex.

Next was Toyota with their Innovas, Fortuners, Hi Lux, and Hi Ace.

Isuzu's Alterra is also common rail. I'm not sure about the new D Max.

Mitsubishi's new pick-up and Pajeros are common rail too.

Kia's Sorrento and Sportage are CR diesels.

Hyundai's Santa Fe, Tucson, Matrix, and Gets are also CR.

Ford Ranger, Everest, and Focus too.

That's the trend, and everybody's joining the bandwagon. It is for this reason that we have to understand CRDIs.

[Dieseldude]

Hi 4JGtootsie,

My question to everyone is why are CRDi more powerful than conventional diesel fuel systems with the same displacement? Listed below are some re

1. Pup2 is correct about improved fuel automization due to the extreme injection pressures. Whereas traditional diesels inject fuel at 100 - 250 bar, common rail engines may inject fuel at 1600 bar (about 23000 psi). Finer fuel particles are easier to ignite than large droplets.
2. Since CR injectors are electronically controlled by the ECU, multiple injections may occur at one injection cycle, and injection timing can also be rapidly altered to suit various speed and load conditions.
3. And many more.....

Does the added power and fuel efficiency come at a really high price in the long run? That's the way it seems for now. For example, some common rail injectors cannot be repaired as parts are not yet available, and service data have not been released by the factory. But this will defenitely improve in time.

Can CRDi engines last as long as the old diesel engines?
We don't know this. In time, we will find out....

[drey]

Gusto ko rin na kasi ng Common Rail engine honestly. but scared...

Anyway, what happens of the ECU gets busted? Will the CR injectors work properly? May fail safe system kaya ito?

[Dieseldude]

Hi Drey,

Anyway, what happens of the ECU gets busted? Will the CR injectors work properly? May fail safe system kaya ito?[/quote]

A totally dead ECU will not allow the engine to start at all.
We have seen ECUs with partial failure though. Engine may start but can be driven at limp home mode only. ECU will have to be replaced though.

[pinky]

Since my belief says CRDi's are hard to maintain ...

Umm, exactly how hard is it to maintain a CRDi? I'm torn between getting a gas or CRDi version of the Tucson.

Is it more expensive to maintain? I don't know enough about engines to be able to doodle with it myself, so mas isyu sa akin yung cost of maintaining it. Are the parts more expensive? Would it need more frequent trips to the casa?

[mikey177]

Umm, exactly how hard is it to maintain a CRDi? ...Is it more expensive to maintain? ...

The service advisers at Hyundai dealerships have a breakdown of how much an owner is expected to spend for all the PMS intervals, from 1,000-km all the way up to 100,000-km, and every PMS in between. You can ask your sales agent to show you this material so you'll have a better idea of the long-term cost involved with your two choices.

For example, for my CRDI Starex, I pay around P4,000 for every 5,000-km PMS. However, for the 40,000-km PMS I paid P11,000, and for the 80,000-km PMS that I have scheduled in a month or two, I'll pay a whopping P15,000

[ryan17]

My two officemates' Everest (one 2.5l, the other 3.0l) recently had their 25,000km PMS and it cost more than P11,000 (ordinary engine oil) and 2 days stay at the casa. My 3.0 Fortuner also recently had its 30,000 km PMS and it cost only P6,400 (fully synthetic engine oil) and only stayed 5 hours at the casa.

[drey]

The service advisers at Hyundai dealerships have a breakdown of how much an owner is expected to spend for all the PMS intervals, from 1,000-km all the way up to 100,000-km, and every PMS in between. You can ask your sales agent to show you this material so you'll have a better idea of the long-term cost involved with your two choices.

For example, for my CRDI Starex, I pay around P4,000 for every 5,000-km PMS. However, for the 40,000-km PMS I paid P11,000, and for the 80,000-km PMS that I have scheduled in a month or two, I'll pay a whopping P15,000

Wow! That expensive??? My PMS only costed me less than 4K.

[mikey177]

Wow! That expensive??? My PMS only costed me less than 4K.

Are you referring to your 40,000-km or your 80,000-km PMS?

[4JGtootsie]

What is the reason for the boom in diesel engines in Europe?

1. Fuel Economy (obvious already) greater efficiency of the diesel engine.
2. Driving Pleasure. Almost all diesel engines on the market are supercharged. This produces a high cylinder charge at low revs. The metered fuel quantity can also be high and this produces high engine torque. The result is a high engine torque. the result is a troque curve that permits driving at high torque and low revs. It is torque and not engine performance that is the decisive factor for engine power.
3. Environmental compatability. The cloud of smoke that diesel engined cars produced when driven at high loads are a thing ofthe past. This was brought about by improved fuel injection systems and electronic diesel control (EDC) These systems can meter fuel quantity with high precision, adjusting it to engine operating point and invironmental conditions. This technology alsomeets prevailing exhaust-gas emission standards.