A type of internal combustion engine where ignition happens when fuel is spray at high pressure into a compressed charge of air, or the relatively heavy fuel oil used in compression-ignition engines.

learn more… | top users | synonyms

5
votes
3answers
33 views

Troubleshooting low boost pressure

A Tata with a Quadrajet BS IV (90 ps) diesel engine was brought in for low power. When starting the engine in a no load condition the turbo boost pressure is 950 mBar. When the engine accelerates the ...
3
votes
0answers
15 views

Meaning of P0245 (16629) DTC on VW ALH TDI Engine

I'm seeing a P0245/16629 – Solenoid Valve (A) for Boost Pressure Control (N75): Short to Ground – code on our 2002 ALH TDI. The solenoid valve controls the boost by moving the vacuum actuator that ...
6
votes
1answer
43 views

Fuel meets rubber

When working with on (diesel) fuel system components the instructions often advise keeping fuel off of rubber parts or cleaning it up promptly if fuel gets on them. OK, I can get behind that, but what ...
1
vote
0answers
16 views

Troubleshooting Smoking Diesel (2002 VW ALH TDI)

Our 2002 TDI has started surging at idle – especially in gear after a cold start, it seems to get better as the car warms up – and smoking (mostly HB's, vile habit). This has been going on for about a ...
5
votes
1answer
42 views

Diesel Yaris doesn't start very well after an alternator change?

I have recently changed the alternator after it died in my diesel Yaris. I have done about 150 miles with the new alternator however it still doesn't start very well. It now takes 1 long or sometimes ...
3
votes
0answers
43 views

injection fault Renault Megane 2 1.5dci

I have a Renault Megane 2 1.5 dci with 150,000 km on the clock. Sign the injection fault, then the engine stops or makes rattling noises. I noticed that the hose back fuel for air bubbles that appear ...
1
vote
0answers
48 views

Hot cranking problem on 6.6 duramax

6.6 duramax diesel engine cranks good cold but periodically won't crank hot unless I use starting fluid. This usually happens after engine has been turned off about 30 minutes. Also if idles for ...
4
votes
0answers
32 views

Diesel car struggles to start when cold

Recently had the timing belt, water pump, all valves and rocker arms, fuel filter, oil filter, air filter changed on my 2006 Audi A3 8P 2.0 TDI 140. I've had it back for two days now and it struggles ...
5
votes
0answers
61 views

Buzzing sound coming from Audi A3 2.0 TDI engine

This is an '05 A3 with a 2.0 TDI BKD engine, about 120k miles on it. The sound starts when I move the key to the ON position, without starting the engine. But even with the engine on, it's still there,...
5
votes
0answers
41 views

VW Passat diesel fails to start when the engine is warm

My car will start OK when cold, on the first or second attempt. It will start on the 1st attempt if the engine has been running, and the engine has only been shopped for a few minutes. However if ...
5
votes
0answers
63 views

Starting a diesel tractor

I have a diesel tractor with a generator. After sitting for a long period the battery was low so I used a portable jumper battery but mistakenly hooked up the cables in reverse. This caused smoke to ...
2
votes
0answers
42 views

BMW 520d e60 2008 diesel engine won't start after switching off

I have a strange behaviour of my car. Engine starts well at any weather condition but after driving and switched off engine cannot start again for 20 - 40 minutes. After this time it starts like ...
5
votes
2answers
58 views

Diesel engine won't start when hot

My Ford forgo 2012 diesel refuses to start after driving long distances, but it usually starts well when it is cold. What could be the problem?
0
votes
0answers
9 views

Ford Ikon tdi Unknown details - starting problem [duplicate]

My dad bought the vehicle last year, but recently he has been having trouble with the vehicle. First he had leaking injectors whereby he repaired them,but now he has been having the problem of bubbles ...
5
votes
1answer
33 views

Starting issue with 2007 F350 6.0 diesel

Intermittently, when it's cold out and I'm starting starting the vehicle and then shutting it off the vehicle will start to crank while the key is in the off position. With the vehicle in the off ...
8
votes
1answer
112 views

Does free revving a diesel engine to 4000 rpm (1.6 crdi- hyundai) cause any damage?

It's a Hyundai CRETA/ ix25 model... clocked 1800kms on the odometer, diesel spec engine 1.6 crdi unit, manual transmission! It has redline at about 4800rpm in the tachometer. When i took it for ...
8
votes
3answers
155 views

How did they start diesel engines before the glow plug was invented?

According to this Bosch page, their glow plug was developed in the early 1920's. Yet the diesel engine was around for at least 20 years prior to that; the French used it in a submarine in 1904, for ...
0
votes
1answer
41 views

Diesel engine vs petrol engine characteristics [duplicate]

Please explain why Diesel engines (in general): vibrate more. are louder. I understand in principal how both engine types work so feel free to go into technical details. My assumption is that it ...
3
votes
1answer
41 views

keep getting air in the fuel line

I put 17 liters of petrol in my Renault kangaroo it already had 8 liters of diesel in it had it drained by mechanic put 12 liters diesel in it took a while but did start and run well until I got 3 ...
6
votes
1answer
74 views

Has wrong glow plug damaged piston?

I recently had the engine on my VW Golf TDI replaced with a reconditioned engine. After having start up problems for a while, I asked an independent mechanic to have a look. He found that one of the ...
2
votes
2answers
41 views

Fluids for Citreon Berlingo Diesel With Manual Transmission

Opened the bonnet, looked to LHS beyond screen-wash reservoir, removed cap on (?) hydraulic oil, found it to be RED in colour and below minimum level when engine not running. Went to shop: insisted I ...
5
votes
1answer
62 views

306 Peugeot Vivante 1.9 diesel won't start – I have changed glow plugs and relay

306 Vivante turbo diesel won't start. It has new glow plugs and relay, exhaust is leaking badly in first section and the turbo is on the way out, but turns good thought it would at least fire up. ...
9
votes
1answer
323 views

My car's diesel exhaust smells really bad

First of all let me say I apparently have no exhaust leak. For a long time I've been asking myself how was it possible that the exhaust of my car smells so bad. It does it when in the morning, I ...
11
votes
2answers
683 views

What's the cause of Diesels' typical clatter noise?

I guess it's related to their basically running off knocking, but if I were to explain it to someone like this, it wouldn't convince me neither. [Edit] From http://www.ford-trucks.com/forums/369700-...
3
votes
3answers
318 views

2004 powerstroke white smoke now no start

I have been trying to fix my truck for a while so long story. I need help bought a 2004 power stroke with 100k miles. It ran well for 15k miles then started having low power for first few minutes to ...
2
votes
0answers
48 views

Volvo D13 Boost and fuel mileage problem

My Volvo diesel D13 creates boost at low RPM's at various amounts of level and at any given time; the fuel mileage has gone down by 1.5 miles per gallon. The waste gate was replaced and the computer ...
7
votes
2answers
232 views

Hyundai i30, 1600 cc Difficulty starting

Hyundai i30 model 1600 cc Auto. diesel, now done 60,000 miles. About 10 months ago, I had difficulty starting the engine from cold. The temperature would have been in the 50 to 60 degree Fahrenheit ...
5
votes
3answers
121 views

Can the throttle position be high during idle

I used an OBD to get data from one of my friend's car - Volkswagen Polo 1.5L Diesel. But the car was idling at around 900 rpm, while the throttle position I got was around 22%. How is it possible? As ...
12
votes
1answer
164 views

What are the pro's and con's of compression braking vs. exhaust braking?

My truck supports 2 types of engine brakes: Compression release brake Exhaust brake Both can be selectively deactivated using switches. What are the pro's and con's of each type of engine braking ...
4
votes
0answers
53 views

1989 7.3 IDI wont start

I have a 1987 F250 with a 1989 7.3 IDI swap, the truck always used to run great. I went outside to try and fire her up and she wont start. I've tried plugging in the block heater and using ether. It ...
8
votes
1answer
93 views

How will diesel engine perform with air in fuel line?

I recently replaced a fuel filter in my 2005 Dodge Ram 3500 Cummings (5.9L). I'm now getting performance issues: at low speed, and especially starting from a stopped position, I'm getting low power. ...
8
votes
2answers
62 views

Proper glow plug operation

Are glow plugs supposed to stay on after the engine has started to help with the firing of the first few revolutions?
9
votes
1answer
99 views

Ford Tractor 5600

This is a older tractor. My question relates to the fuel system. The older fuel injectors don't have any external seals? All of them seat and 3 don't leak but one does. I was looking for a seal but ...
13
votes
2answers
398 views

Why do diesel fuel lines have to be bled?

Background I've had a couple of situations with diesels. One in particular where I swapped a Ford F350 Powerstroke 7.8 transmission. When I was done. The truck wouldn't start. It was a painful ...
7
votes
0answers
43 views

Additives in Engine Oil

As engine oil is been used in the engine, it gets aged and therefore oligomers are formed. Is there a way that we can separate these oligomers without affecting the additives in the oil???
4
votes
0answers
134 views

Mahindra KUV 100 and Suzuki Alto OBD protocol

Can someone please tell me the OBD-II protocol of Mahindra KUV 100 (diesel) and Suzuki Alto (diesel). Also whether ELM 327 Bluetooth will work? http://www.ebay.in/itm/SuperMini-ELM-327-Bluetooth-v2-...
9
votes
2answers
185 views

How are diesel engines better for the environment than gasoline?

I understand that diesel engines have become much more efficient at controlling emissions over the last couple decades. Various websites like this one describe the technological improvements that have ...
5
votes
1answer
659 views

Possible EGR problem on Fiat Idea Multijet 1.3 Diesel

I've been having issues with my 56 plate Fiat Idea for a while now. It seems to drive normally up to about 2500-3000 rpm where the car lurches a little, as though i shifted down a gear, the MIL light ...
7
votes
2answers
564 views

Two-Stroke Diesel Engine - Do they use forced induction on them?

As I have indicated before, I'm very diesel ignorant. I just know the basics, very basics. In a two-stroke diesel engine using forced induction seems necessary but at the same time I see challenges. ...
6
votes
1answer
179 views

Two-Stroke vs. Four-Stroke Diesel Engines - What is most commonly used in heavy vehicles?

I am not well versed in diesel engines. To prove my point, I've learned in the last month that a two-stroke diesel engine actually exists. My Question. What kind of diesel engine (four-stroke or ...
6
votes
1answer
70 views

What is DEF and how is it used?

I keep hearing about DEF ... what is it and why is it used in conjunction with diesel engines? I know it is a more recent thing (last decade), but don't know much about it.
8
votes
3answers
562 views

Why don't all diesel engines have throttle plates?

I learned recently that many older and some newer diesels don't have throttle plates to control airflow. I was also quite shocked to learn about a condition called diesel engine runaway. Apparently ...
40
votes
6answers
9k views

Why do heavy vehicles almost always use diesel engines?

I have always wondered why heavy vehicles such as large trucks and buses almost always use diesel engines, whereas in light cars there is a choice between diesel and gasoline engines. Engine ...
6
votes
1answer
65 views

Why is there no drop-in biogasoline like there is drop-in biodiesel (e.g. NEXBTL)?

I have always wondered why there is no drop-in biogasoline like there is drop-in biodiesel. For example, NEXBTL by Neste can be run at 100% mixture in conventional diesel engines. It is different from ...
6
votes
1answer
277 views

Can diesel engine be harmed as easily as gasoline engine by over-revving?

There is an excellent Q&A about why diesel engines have lower redline RPMs (about 4500 RPM) than gasoline engines (about 6500 RPM). The reason is related to the combustion of diesel fuel. However,...
5
votes
1answer
436 views

Ford Focus engine cuts out at 3000+ RPM

I should provide a little background to this issue as I believe the two are most likely related. The car is a Ford Focus 2008 1.6 TDCi Diesel (UK) which this year has had a brand new battery and ...
4
votes
2answers
156 views

Diesel engine suddenly doesn't start and returns to normal without aparent reason

I have a Ford Fiesta 1.4 tdci 2003 that was working without issues since yesterday. Just stopped at house after work to eat, 2 hours later I went to the car and it wouldn't start. I tried hard but ...
1
vote
1answer
40 views

1995 Ford F-250 - Starter continues to run until the batteries are dead

Have a '95 Ford F250 with the 7.3l diesel. Starter just quit working one day. I changed the solenoid and the key lock barrel on the steering column. Now it will turn over but won't stop. Starter motor ...
12
votes
2answers
371 views

Diesel Engine Runaway - What is it?

I was watching some youtube videos and diesel engine runaway videos started to pop up where apparently the diesel engine runs out of control until it destroys itself. My Question What is diesel ...
4
votes
1answer
24 views

Coolant type for 1977 Diesel

I have a marine 1977 Perkins T6.354 6 cyl, 6 liter turbo diesel. There are different types of coolant available and I've done significant research into this question and have not found a clear answer....