Question about 2008 Toyota RAV4

Open Question

Just cleaned out EGR valve (seriously gunked up) and put Bg244 in the diesel everyting is running like new. However if i start from cold or hot it runs like a dream but if i leave it for an hour or so theres a puff of white smoke and it runs lumpy - if i rev it several times this all clears and it runs fine. Could the Egr be defective i.e. slow to open/close or not operating as it should ? When i cleaned out the valve the spring was hard to push open would/could this of effected the electricals of the solenoid.

Posted by on

Ad

5 Suggested Answers

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.
New users get to try the service completely Free afterwhich it costs $6 per call 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

Ad
johnjohn2
  • 5763 Answers

SOURCE: I have a 2001 Toyota

Okay, the first test would be to start engine and put vacuum to egr valve so it opens the engine should drop in idle and may stall out, this test will tell you that the valve works and passages are clear but if the engine doesnt drop in idle then you may have a bad valve or block passage, if this is an electric egr then this is hard to test some of these without a scan tool, what you can check is the passage by removing the valve and then starting the engine and it will rev up and then use finger there will be two passages, one for exhaust that you will here and the other if you put finger over should be vacuum if you have both then i would look at valve. the valve contains the postion sensor as part of the valve,if it vacuum lets go back after the first test above you will now need to test the selinoid, this is computer controlled and allows vac to open the valve, these go bad often and is mostly a common problem, you will need to remove vac line that goes to valve, the other line should have vac with engine running.check it to make sure it does. if not check lines. next you will need a test light, remove the connector to solenoid and test for power and ground. you will have one of the two, the computer will send power or ground to open, you need to find out which is lacking, next is to start engine and apply power or ground whatever its lacking and vacuum should come out of the port to egr hose you removed, if no vac then the soleniod is the problem, make sure when checking connector you unplug it and test then plug in and applie what is no there. good day.

Posted on Aug 17, 2011

Ad
  • 66 Answers

SOURCE: toyota hiace GS300 d4d diesel 2053 engine stops whilst ideling

you have a leak in one of your fuel lines . but its not be a outward leak its sucking air .first look at all of the steel lines. if no problem found go to all the rubber lines you are sure to find the problem

Posted on Jan 25, 2009

Autotroubles
  • 987 Answers

SOURCE: sometimes accelerates and seconds later hesitates

Is the MIL light on? what are the codes? sounds like the MAF mass air flow problem or fuel filter.

Posted on Sep 16, 2011

  • 2 Answers

SOURCE: egr vacuum solenoid location

what type of toyota u have or if u can give me the engine code i might b able to help u

Posted on Dec 08, 2011

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

2006 f350 6.0 powerstroke diesel missing. help


there is no wastegate on a 6.0l turbo. its a variable geometry turbocharger and doesn't need it. i have never seen a turbocharger cause a misfire, the turbocharger is most likely not your problem. if you didn't clean the intake out when replacing the egr valve there is a really good chance that the egr is bad again. also, a bad egr cooler can cause repeat egr failure. also, fuel injector control module is a common cause for misfire

Feb 18, 2012 | 2003 Ford F350 Super Duty DRW SuperCab

Tip

Intercooler and EGR problem


Sometimes people get this low power and smoke problem in a turbodiesel car with an intercooler. Once it is not your injectors or turbo gone, you can solve it without buying new intercooler or EGR valve. You can actually clean them. It does take few hours of your time but cost you much less. All you need is few hours of time, a gallon (4-5liters) of diesel and same of petrol (better naphta but its hard to get in some places). First you need to take of the intercooler which might involve removing front bumper in some cars. Once you have it out, put it on the ground (do not damage the core) and fill it up with diesel. Cover the inlet and outlet (best with balloons) and leave it for few hours. Meantime you can take care of the EGR valve and inlet manifold. Using petrol and soft brush clean all visible parts but do not fill EGR with petrol too much as it must be complete dry before you put it back. Do same with the inlet manifold, just clean that oil/smoke build up. It is slagish but getting rid of it will add your engine extra kW/Bhp and some life to it. When you finish cleaning and drying the EGR and manifold your intercooler should have been a little "washed" by the diesel inside, shake it a little bit, the "balloons" should stop the diesel from spilling out, and leave it for 2-3 hours. After that time empty the diesel out of it and fill it with petrol (naphta) to wash out remainings of dirt and diesel, do it couple of times while shaking until the liquid is more cleaner, than dry the inner of the intercooler, make sure it is completely dry and as clean as possible as anything that will be wet with diesel may cause some serious problem. After drying and putting everything back, leave it for a while before starting the engine, this is to make sure that whatever remained undry will vapourize. Remember when you start the engine do not rev it up just leave it at idle for 10-20 minutes. This will add temperature that will dry up anything you've missed and not cause any damage as there will be not enough pressure. After this operation you will notice a change in the car's performance.

on Feb 04, 2010 | Mazda 323 Cars & Trucks

1 Answer

Check engine code 2001 ford taurus p0401


usually caused by clogging or bad valve. Valve can fail by clogging, torn diaphram, or bad/loose vacuum actuation hose.

Exhaust gas recirculation (EGR) system - insufficient flow detected

Causes: Hose leak/blockage, basic setting not carried out (if applicable), wiring, EGR valve, EGR solenoid, ECM


Your EGR valve should be on top of the engine in the front between the intake manifold and the pulleys. It looks something like this:


382f71b.jpg
First, make sure the vacuum hose is good and run it down to where it connects to the intake manifold to check for any leaks. If that's good and you want to get your hands dirty, take the valve off and see if it's clogged. clean it and see if you can actuate it with vacuum (put a vacuum hose on it, ****, and see if it will open. Also, look to see if there is gunk in the line and intake where it connects. Clean out anything you can with carb cleaner.
If you can get it unclogged and the valve is working, put the valve back on with a new gasket, else buy a new one ($40 at autozone :o( ). If you solve the issue, the engine light should clear after a couple hours of driving. OK?

Oct 16, 2010 | 2001 Ford Taurus

1 Answer

1990 Deville 4.5 litre v-8 vacuum present from vacuum line to egr selenoid but no vacuum from egr selenoid to egr valve the car runs fine when cold but runs poorly when warmed to operating temperature.


You will not see any vacuum from the egr solenoid until the engine has reached normal operating temperature and certain other driving conditions have been reached (like throttle position and road speed). If the engine runs rough when warmed up, check the CTS (coolant Temp sensor) when hot and cold and if no fault shows there, start checking input sensors for engine and cam position, engine timing, RPM etc. If the EGR valve was leaking, it is only adding air to the exhaust stream and usually, manually opening the valve and blowing out the seat with compressed air should fix the issue. This can also be an issue with clogged injectors. When the engine is cold, fuel enrichment supplies more then normal fuel amounts to encourage even running. When the engine warms up (normal operating temperature), fuel enrichment mode is turned off. If your injectors are clogged (even if only slightly) fuel starvation will cause rough running. Fuel enrichment overcomes the starvation of clogged injectors. Try adding a propriety injector cleaner to your fuel tank and watch for an improvement. If you do see an improvement, have your injectors cleaned and tested professionally. If you locate any other issues with engine sensors, replace them and ensure the new components are adjusted correctly if required..

Dec 12, 2009 | 1990 Cadillac Deville

1 Answer

Rough idle when cold and hot


have you replaced coil pack? Check EGR passage through upper mainfold and make sure clean. also make sure EGR valve not stuck part way open. Also check crank and cam sensors along with MAF.

Sep 21, 2009 | 2000 Mazda MX-5 Miata

1 Answer

Mercedes E300 turbodiesel, 1999, is poor to start when cold, almost/is impossible to start when hot. no air visible in fuel lines, all seals etc replaced, new fuel tank strainer, fuel pre filter and fuel...


Yes sir , you have a failing valve, soon it will snap in two....please have your head checked. You can do this yourself by placing a long-handed screwdriver , business end down to each cylinder while pressing your ear to the handle(while engine is running)...you will notice a definite difference when you hit which cylinder has the bad valve. Also makes sure the egr valve is clean and your exhaust recycle valve is not stuck.( located in the crossover pipe)

Aug 29, 2009 | 1999 Mercedes-Benz E-Class

3 Answers

I have a chevy blazer 94 S10 still quit on the road.


How is it running before it quits onyou. This could be the culprit of an egr valve. How many miles on thevehicle. The egr seems to die on a certain mileage pattern. Also youcould start by cleaning the egr valve before replacing it. This couldvery well help the situation, but this is just a guess. Hope thishelps!!

Apr 30, 2009 | 1994 Chevrolet S-10 Blazer

2 Answers

98 honda accord 0401code changed egr what else can I do ?.


remove the egr .clean the carbon out the intake where egr valve sits . use a small tiny tiny screw driver or old coat hanger clean out the hole then vacuum up carbon.put back egr valve.

Mar 18, 2009 | 2000 Honda Accord

2 Answers

Engine light on 2000 camry


Buy a gasket and take the old valve off, clean the gunk out of it with carb cleaner, put it back on with the new gasket and you just spent $10. If the code pops again, buy a new EGR valve, $160 at Advance Auto. Then, report the shop who quoted you $795 to the BBB.

Dec 31, 2008 | 2000 Toyota Camry

Not finding what you are looking for?
2008 Toyota RAV4 Logo

Related Topics:

181 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toyota Experts

yadayada
yadayada

Level 3 Expert

76630 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8514 Answers

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

Answer questions

Manuals & User Guides

Loading...