The car part that's almost extinct - just 8% of new models have it

[nomadpete]

Well this is about a car part that isn't actually extinct. But there is so much disinformation about EGR systems that many people are amputating this part of their vehicles.

 

Here's an entertaining look at how EGR's work.

 

 

[spacesailor]

It seems Ford have a problem with the exhaust gases burning through the water cooling wall.

The first sign is when your radiator water is turned into steam .

spacesailor

 

[nomadpete]

I liked the way he brought science into the description.

 

Plus stuff like 'everyone knows that air is 21%oxygen,  78% nitrogen &  1% gunsmoke'

 

Well, he is a mercan.

[facthunter]

It's not that good for the Motor. Gunk's up the inlet tract and get mote Bore wear.. Just reduces N0X by making the combustion temp lower. Nev

[Litespeed]

Just like your pcv, the EGR is essential not just for emissions but proper air and oil flow in the motor.

 

Their blockage is a major source of sludged motors.

Once the sludge builds up all the tiny oilways for cams and variable timing get blocked and a dead motor is soon on the cards.

[spacesailor]

litespeed 

 You Mean it is the EGR . That ruins the engine ! .

spacesailor

[Litespeed]

Also the pcv which controls the pressure waves in the crankcase, they need to be checked and cleaned regularly and replaced asap if faulty.

 

When blocked the oil is quickly contaminated and the head is first to fail.

[facthunter]

EGR sludges the entire intake and builds up on the underside of the valves and causes more cylinder wear and reduces power and economy. It reduces NOX.by lowering peak combustion temperature. That's all. Regular oil changes with GOOD oil keep Diesel engines very clean these days. Nev

[Grumpy Old Nasho]

My oil light has decided to light up during idling in the 2017 Kia Cerato in the last few weeks. Oil level is ok, must be the pressure switch, do you think?

[onetrack]

GON, check your oil pressure with an accurate oil pressure gauge plumbed into an engine oil gallery or lube supply point. Once you have an accurate reading (engine hot, and pressure checked at idle and at speed), you can then check the readings against the recommended pressures.

 

Some engines have low pressure at idle normally, but a light on at idle is generally an indicator of excessive big end bearing wear.

[onetrack]

EGR systems work O.K. if kept maintained and regular oil changes carried out and good quality oil is used.

 

You can buy Penrite "Foaming Intake Cleaner" in both petrol and diesel versions, this stuff works good to clean out sludged intakes and engines.

 

The Ford Ranger 3.0L diesel is notorious for the EGR failing with coolant leaks. The welding on the EGR coolant section was poor and the weld splits, dumping coolant straight into the intake, it buggers engines very quickly, usually by overheating.

I have one with that problem right now, it pisses me off, having to strip the engine right down to check the damage.

 

 

Edited Sunday at 02:34 AM by onetrack

[Grumpy Old Nasho]

 

 

3 minutes ago, onetrack said:

GON, check your oil pressure with an accurate oil pressure gauge plumbed into an engine oil gallery or lube supply point. Once you have an accurate reading (engine hot, and pressure checked at idle and at speed), you can then check the readings against the recommended pressures.

I better get my mechanic to look at it .. the thing is though, that it only started lighting up since he did the last service. Not saying he's at fault in any way, but there were no problems before hand. The engine has only 50,000ks on it, so the bearings should be still ok.

[spacesailor]

onetrack

The coolant doesn't go into the inlet as it's attached to the exhaust manifold .

what it does so very quickly,  is to blow all the coolantout of the engine & radiator.

it happened to my bro' -in -laws three year old 5 cylinder diesel Ranger .

Not a happy owner .

spacesailor

 

[onetrack]

The Cerato may have a partially-blocked oil pump screen, which will result in low oil pressure, especially at idle.

No guarantee bearings won't fail at 50,000kms, Kia have a bit of a history of early engine failures.

[Jerry_Atrick]

As my daughter says: KIA: killed in action

[Grumpy Old Nasho]

1 hour ago, onetrack said:

The Cerato may have a partially-blocked oil pump screen, which will result in low oil pressure, especially at idle.

No guarantee bearings won't fail at 50,000kms, Kia have a bit of a history of early engine failures.

Actually I think I've just figured out what the problem is, something simple, idling revs too low. I took the car for a spin, and saw that the tacho was only on about 750RPM at idle. Lately, I've been using the kick-down a lot more than I have in the past and I'm wondering if that has something to do with it.

[onetrack]

 There's a valve called the IAC (Idle Air  Control) valve that controls the idle speed according to engine temperature and load. 750RPM would be a normal idle speed when warm.

 

If the A/C is turned on, the IAC increases the idle speed to take into account the increased engine load.

[Grumpy Old Nasho]

14 hours ago, onetrack said:

750RPM would be a normal idle speed when warm.

I think 850 would be closer to the mark. Anyway, I'll bring it up till the light goes out, then that will keep me happy. I'm sure it will go out before 900.

[nomadpete]

Can't you just pull the wire off the sensor?

[onetrack]

If it was MY car, I wouldn't be happy, until I knew what the actual oil pressure reading was, checked with a proper analogue gauge. 

[nomadpete]

8 hours ago, onetrack said:

If it was MY car, I wouldn't be happy, until I knew what the actual oil pressure reading was, checked with a proper analogue gauge. 

Of course. I was only jesting.

 

I am surprised that car makers (well, piston engined cars) persist in having a coolant temperature gauge, when with modern technology it should be a simple matter to monitor oil temp.

As well as actual oil pressure.

Edited 19 hours ago by nomadpete