Question about 1990 Volvo 740

1 Answer

The PCV oil trap.

Hi,
The oil trap is on my ' 90 volvo 740T.
Can it be flushed with an (engine flush) cleaner or does it have to be removed and replaced with a new one?
Thank you very much for answering my previous question.
Cheers,
Ken

Posted by on

  • Iwannaknow Nov 04, 2008

    zeder,

    Thank you for your feed back. You are right about Flame Trap. Those little guys can really get gunked up if you leave them long enough, but the 740s with Turbos only have a PCV Nipple and not a Flam Trap. Why that is, I don't know, and actually I just learned in chatting with a fellow, that the Oil Trap can be replaced,........ without removing the Intake manifold.



    Cheers,

    Ken

×

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

I would replace the flame trap, it costs about 5 bucks, and you would have to remove it to clean it anyway. Takes about 10 minutes.

Posted on Nov 04, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

3 Answers

Sugar in a gas Tank


no you have to drop your gas tank clean it out. if you didn't start then just clean gas lines. if you started it then you need a new engine. the sugar gets in the engine and turns to syrup. bad engine.

Jan 28, 2013 | Ford Cars & Trucks

1 Answer

Blowing blue smoke and pushing oil out of the top of the motor


bad ring. make sure your pcv valve and breather tube are working. lack of oil changes can cause ring not to seat. flush engine with gm top engine cleaner. may help release rings. run engine about 25 miles then change oil,

Dec 24, 2012 | Mitsubishi Galant Cars & Trucks

1 Answer

At 28,066 dealer oil change. At 28,778 dealer flushed engine to remove sludge build up and changed oil. At 30,835 miles inspection, dealer flushed engine to clean out sludge and changed oil. At 34,630...


First dealer was NOT doing you any justice. Next oil change run a can of GUNK engine flush let idle 5-10 mins then change Oil & Filter and use a good oil like Castrol or Valvoline 10w-30. You won't have "supposed" sludge build up.

Mar 02, 2011 | 2000 Chrysler Town & Country

1 Answer

Just recently replaced the flame trap on a 240 GL and noticed nipple to the oil trap seemed to be clogged. Do I have to take off the manifold and remove the oil trap to clear it?


Probably. Next time you change your oil, you can try pouring some solvent such as SeaFoam down the hose and letting it sit overnight to see if it flushes through. Good luck.

Feb 18, 2011 | 1987 Volvo 240

2 Answers

WILL THE PCV VALVE CAUSE A CAR NOT TO START? IF ITS GOES WITH OUT GETTING IT FIX WHAT PROMBLEMS WILL IT CAUSE?


The blowby vapors that end up in an engine's crankcase contain moisture as well as combustion byproducts and unburned fuel vapors. The crankcase is sealed to prevent the escape of these gases into the atmosphere, but the vapors must be removed to prevent oil contamination that leads to sludge formation. The positive crankcase ventilation (PCV) system siphons these vapors from the crankcase and routes them into the intake manifold so they can be reburned in the engine.

The main component in the PCV system is the PCV valve, which is usually located in the valve cover. A hose connects the PCV valve to the intake manifold. A second hose between the air cleaner and crankcase or other valve cover (V6 or V8 applications) provides fresh air to help flush the vapors out of the crankcase. Some engines have a separate air filter for the PCV breather hose located inside the air cleaner.
Probably not read above for details.

Feb 08, 2011 | 2002 Ford Taurus

1 Answer

Is it a good idea to flush the motor of this engine before I replace the oil?


only if oil has not been changed for mor than 9,000miles when u flush you will want to replace oil filter befoer first flush and then after before putting the second oil through

Jan 14, 2011 | 1996 Volvo 960

2 Answers

How often should I change the Transmission fluid, normal driving ? Thank you Gary


It's listed in your owner's manual. Schedule A is normal driving conditions.
SCHEDULE "A"
7,500 miles (12 000km) or at 6 months
- Change engine oil.
- Replace engine oil filter.

15,000 miles (24 000km) or at 12 months
- Change engine oil.
- Replace engine oil filter.

22,500 miles (36 000km) or at 18 months
- Change engine oil.
- Replace engine oil filter.
- Inspect front wheel bearings.
- Inspect brake linings.

30,000 miles (48 000km) or at 24 months
- Change engine oil.
- Replace engine oil filter.
- Replace engine air cleaner filter.
- Replace spark plugs.
- Drain and refill automatic transmission fluid and filter (4.7L).

37,500 miles (60 000km) or at 30 months
- Change engine oil.
- Replace engine oil filter.
- Drain and refill automatic transmission fluid and filter (5.2L/5.9L).
- Drain and refill transfer case fluid.

45,000 miles (72 000km) or at 36 months
- Change engine oil.
- Replace engine oil filter.
- Inspect front wheel bearings.
- Inspect brake linings.
- Flush and replace engine coolant at 36 months, regardless of mileage.

52,500 miles (84 000km) or at 42 months
- Change engine oil.
- Replace engine oil filter.
- Flush and replace engine coolant if not done at 46 months.

60,000 miles (96 000km) or at 48 months
- Change engine oil.
- Replace engine oil filter.
- Replace engine air cleaner filter.
- Replace ignition cables (5.2L/5.9L).
- Inspect PCV valve, replace as necessary.
- Replace spark plugs.
- Inspect auto tension drive belt and replace as necessary (5.2L/5.9L).
- Drain and refill automatic transmission fluid (4.7L).

67,500 miles (108 000km) or at 54 months
- Change engine oil.
- Replace engine oil filter.
- Inspect front wheel bearings.
- Inspect brake linings.

75,000 miles (120 000km) or at 60 months
- Change engine oil.
- Replace engine oil filter.
- Drain and refill automatic transmission fluid and filter (5.2L/5.9L).
- Drain and refill transfer case.
- Flush and replace engine coolant if it has been 30,000miles (48 000km) or 24 months since last change.
- Inspect auto tension drive belt and replace if required.

82,500 miles (132 000km) or at 66 months
- Change engine oil.
- Replace engine oil filter.
- Flush and replace engine coolant if it has been 30,000miles (48 000km) or 24 months since last change.

90,000 miles (144 000km) or at 72 months
- Change engine oil.
- Replace engine oil filter.
- Replace engine air cleaner filter.
- Replace spark plugs.
- Inspect front wheel bearings.
- Inspect brake linings.
- Inspect auto tension drive belt and replace as necessary.
- Drain and refill automatic transmission fluid (4.7L).

97,500 miles (156 000km) or at 78 months
- Change engine oil.
- Replace engine oil filter.

105,000 miles (168 000km) or at 84 months
- Change engine oil.
- Replace engine oil filter.
- Flush and replace engine coolant if it has been 30,000 miles (48 000km) or 24 months since last change.
- Inspect auto tension drive belt and replace if required.

112,500 miles (181 000km) or at 90 months
- Change engine oil.
- Replace engine oil filter.
- Drain and refill automatic transmission fluid and filter (5.2L/5.9L).
- Inspect front wheel bearings.
- Inspect brake linings.
- Flush and replace engine coolant if it has been 30,000 miles (48 000km) or 24 months since last change.

120,000 miles (192 000km) or at 96 months
- Change engine oil.
- Replace engine oil filter.
- Replace engine air cleaner filter.
- Replace ignition cables (5.2L/5.9L).
- Inspect PCV valve, replace as necessary.
- Replace spark plugs.
- Inspect auto tension drive belt and replace as necessary.
- Drain and refill automatic transmission fluid (4.7L).

Thanks for using FixYa -a 4 THUMBS rating is appreciated for answering your FREE question.

Sep 05, 2010 | 2001 Dodge Durango

1 Answer

Volvo 960 estate blowing oil from the oil filler cap Whats causing it?


Your PCV / Oil trap is likely clogged. I have had some luck running Mobile 1 Synthetic oil and half a can of seafoam in the engine oil to clean things up but it is likely that you will have to replace the pcv system.

Mar 11, 2010 | 1995 Volvo 960

5 Answers

Oil coming out of engine oil filler cap even though i have changed oil filler cap


The engine breather pipe seems to be blocked.
It may also damage the oil seals.

Oct 27, 2009 | 1992 Volvo 940

1 Answer

What type of oil should i put in my 1993 crown victoria


I would really have to recommend that you use a HIGH mileage synthetic blended oil.

As with many older cars, the seals and rings in the engine might have never been replaced and will begin leaking compression and thereby giving you a significant loss of power and acceleration. Also with older engines, when oil is allowed to seep past the piston rings into the combustion area of the block where "fuel meets the fire" it will create a gray smoke in your exhaust that is not good for the environment. You see oil does not have the same ignition temperature as vaporized fuel does and there for does not burn off completely when the spark plug ignites during the compression stroke of the engine cycle.

As for a synthetic oil I would suggest, I like using Castrol Syntech blend. Now it will cost you about 2x what a regular quart of oil does, but it will be well worth it.

I would make a suggestion though, if you have not had the engine cleaned, do yourself a favor and purchase a quart of Wynn's Engine Flush and pour it into your engine prior to performing the next oil change and run the engine for about 5 minutes (DO NOT DRIVE THE CAR!) then drain the oil and install a NEW high quality oil filter and fill the oil back to where it should be on the dip stick.

The Wynn's Engine Flush is designed to breakdown and remove the sludge and varnish from the inside of the engine, from the cylinders and the values as well as from the oil pump and oil pickup screen. The new oil filter will trap the sludge from the engine within a few hundred miles. After about 500 miles, I would suggest that you replace the oil filter again with a new one. You do not need to drain and replace all of the oil again. Just make sure that you replace the oil that drains out of the filter with new synthetic oil.

You should see a significant increase in fuel mileage and engine performance. While you are performing your next oil change, be sure to replace the FUEL FILTER with a new one as well as the AIR CLEANER. I would also suggest that you go ahead and replace the PCV Valve located on the top of the engine on the valve cover. Over time the PCV valves get clogged with dirty oil and debris and can affect engine performance by robbing the engine of power.

Hope these tips help you out.

Cheers,

Keith

Dec 10, 2008 | 1993 Ford Crown Victoria

Not finding what you are looking for?
1990 Volvo 740 Logo

Related Topics:

280 people viewed this question

Ask a Question

Usually answered in minutes!

Top Volvo Experts

yadayada
yadayada

Level 3 Expert

70387 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22041 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6879 Answers

Are you a Volvo Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...