A heavy oil used in compression-ignition engines.

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3
votes
2answers
1k views

VW Golf 2.0 SDI (2005) - smokey when pulling away

Over the last 12 months I have noticed that as I pull away and put my foot down a little more, there is often a bit more of a cloud of smoke left behind. Its not thick smoke but still it seems like ...
2
votes
1answer
510 views

Peugeot 406 won't start in cold weather

I drive a Peugeot 406 2.0 HDI, 2001. This morning it was -13 °C (9 °F) and the engine couldn't start. First two times, I could hear the engine running, but the third time it died and my temporary data ...
7
votes
2answers
311 views

'83 Mercedes 300D will not start when warm

The car runs great when first started, great pickup, etc. However, if I stop and shut off the engine, it will not start back up. At times I can pump the accelerator 5 or 6 times and then it will start ...
1
vote
1answer
9k views

Ignition switch or starter issues?

I have a 2004 ford f350 diesel and some very perplexing problems: The ignition won't turn over the starter yet the lights shut off when engaged (usually means the ignition switch is ok) but also the ...
2
votes
1answer
112 views

1986 VW Jetta Glow Plugs Not Getting Current

My 1986 VW Jetta seems to have a cold air sensor switch that isn't working. When I turn the key on and wait the little yellow light glows and then turns off just like it should but the plugs don't ...
4
votes
3answers
1k views

How to diagnose ABS problem (ABS light on) on a 1992 Volvo 940 turbo diesel estate?

The ABS light came on after car was not used for a few weeks and a new battery fitted. The ABS light is now on all the time. The garage can't find the diagnostic plug. Any ideas on either of the ...
1
vote
1answer
458 views

BMW 33D 2001 no power problem

I have: BMW 330D, 2001 year, saloon, 135kw Recently I have change the turbo charger of my car. There was a problem related with this post. Then I went to the garage and they ran the diagnostics. ...
2
votes
1answer
1k views

Engine has become noisy

I have a 1993 Mercedes 308d. It always used to be fairly quiet, but recently the engine has started to sound quite noisy. Its OK when started then after it gets warm you notice when you come to a ...
6
votes
6answers
6k views

what can be the reason my old diesel Mercedes won't start?

The vehicle is a Mercedes-Benz T1 model 308D. The engine is an old Mercedes-Benz OM601.940 4-cylinder indirect injection 58 kW (79 hp) 2299 dm3 diesel engine from year 1992. It's not a turbodiesel! - ...
5
votes
2answers
2k views

BMW 330D 2001 E46 Turbo Charger not working as expected after changing

I have a problem with my car. My car: BMW 330D, 135kw, 2001 year, E46. A week ago my turbo charger got broken when I was driving. There was a lot of white smoke going out of exhaust and there was ...
-1
votes
1answer
9k views

What happens if petrol is used in a diesel engine?

The question is asked for various proportions : - 10% of petrol - 50% of petrol - 100% of petrol in a diesel engine. PS : not a duplicate of What happens if unsuitable oil is used in a vehicle ...
9
votes
6answers
28k views

Is it normal for the oil to be dark in color right after an “oil change” in a 10-year old diesel car?

I took my 2002 Jetta TDI wagon to a neighborhood shop about 10 miles, 24 hours ago. They supposedly changed the oil, but the color is very dark, almost black. Definitely not light-colored/transparent. ...
0
votes
0answers
136 views

Do products like Redex work? [duplicate]

Possible Duplicate: Are fuel system cleaners (like Gumout) worth using regularly? Do products like Redex, which state that they "[help] to stop harmful deposits build up on the carburettor and ...
7
votes
2answers
8k views

Why do head gaskets fail in diesel engines?

I'm considering the purchase of a 2001 VW Golf TDI "mechanic's special", so named because it apparently has a failed head gasket (white smoke). I'm not a mechanic but I'm fairly handy with tools and ...
2
votes
1answer
917 views

Diesel motor running slightly jerky on normal RPM after having the turbo repaired

I got my turbo repaired, the service told me that stopped working due to a sensor that had to be changed. It costed me a lot because they told me that the sensor was inside the turbo and it was hard ...
1
vote
4answers
24k views

What is causing air in my fuel line?

I have a 2003 Jetta TDI. I drove it last night with no problem. This morning I cannot start the car. I popped the hood, and discovered air in the fuel line between the fuel filter and injection ...
3
votes
2answers
372 views

1999 diesel Ford fiesta not starting

I'm having trouble starting a 1999 ford-fiesta, diesel (EN engine), that would be mk4 of fiesta. What I tried (in that order) was: Changed fuel filter Tried starting spray (the engine seems to have ...
3
votes
5answers
1k views

How can I increase the life of my diesel engine when my car does lots of small trips?

What things can I do to increase the life of my diesel engine when I make lots of short trips in the car? My daily routine means that the trip to work goes via another destination which gives my ...
2
votes
0answers
604 views

High oil pressure in a marine engine [closed]

High oil pressure in my marine Perkins 4108 diesel showing 80 on the gauge, oil and filters recently changed, wiring checked and ok it runs an alternator to charge the batteries and when disconnected ...
47
votes
7answers
7k views

What to check when buying a used car?

I'm looking to buy a used car. What do you think I should check (mechanically) before buying it (especially if it's diesel)?
4
votes
1answer
586 views

Biodiesel and DPF (Diesel Particulate Filter)

I read a little about DPFs and biodiesel. Some claim that there's a reduction in lubricity and/or viscosity of engine oil when using B30 or above. They warn about increased engine wear because of it. ...
-2
votes
1answer
334 views

Diesel engines maintenance [closed]

Diesel engines are more complex than their petrol counterparts. What are the basic diesel engines maintenance must-dos?
7
votes
5answers
17k views

How to extend the life of the dual mass flywheel in a diesel engine?

I am looking for ways to improve the life of the dual mass flywheel (DMF) in my 2005 Ford Focus tdci. I have heard that they can wear out quite quickly on the Ford Focus if they are driven in city ...
3
votes
1answer
2k views

Is it possible to use biodiesel in a BMW 335d if I remove the DPF and remap the ECU?

The new (2009-current) BMW 335d sells in the U.S. with a DPF to reduce emissions, but which prevents the use of biodiesel. I've read about people removing the DPF and re-mapping their ECU to get ...
13
votes
9answers
11k views

Diesel vs Petrol motorcars. Pro's and cons?

I realize this may be a silly question to those of you on here who are proper petrol-heads and this may even be a repeat question, but I could not find anything on it on here, so here goes: What are ...
7
votes
3answers
2k views

What kind of engine oil should one use in a diesel?

I got an 1987 Toyota Land Cruiser with a 2H diesel engine. I never changed oil on a diesel engine prior to this truck, so I'm a little confused. Toyota Factory Shop Manual recommend API CC oil type, ...
3
votes
3answers
1k views

Marine Diesel fuel filter vacuum gauge spiked — filters are new

I've got an 80-HP marine diesel engine (in a sailboat, naturally). I've got a the Parker/Racor 75500MAX dual fuel filter system with an attached vacuum gauge to monitor resistance. For the first few ...
5
votes
2answers
559 views

What does this device on a 1985 Mercury Lynx/Ford Export Diesel do?

I have a 1985 Mercury Lynx (Ford Escort) Diesel 4 cylinder. The device shown in the pictures -- below the starter -- has a hose connecting it to the radiator. There is another hose that is connected ...
4
votes
1answer
3k views

High oil pressure after oil and filter change

I recently changed the engine oil and filter in my Westerbeke diesel. I gave it the usual (and specified) 4.5 quarts of SAE 30, specifically Chevron DELO. Now when it starts up it reads 80 psi of ...
13
votes
5answers
31k views

How to test for defective glow plugs?

On a diesel engine, how can I know which glow plugs are defective, and can I change these only?