Apologies nurey if i'm derailing ur thread, i can move it to mine.

mayor2013:

why u dy laugh naa...lol
my exhaust always made that sound but after installing d cat d sound went away.
Plz i wish to knw which of d cat dats responsible for P0420 code.


I'll send u picture of d one dat was removed b4 evening.
someone just accused me this morning of throwing money unnecesarily on parts on common siena.

mayor2013:


You still need to replace the one up just at the rear of the engine. You should have one there.but before then let them bring it out and have it checked. Might have detoirated. Your engine should be 1MZ-FE

@mayor2013 will dat one be d 02 sensor? The one dat looks like plug with wire?

nurey:


okay when the CEL reilluminate let him scan and we will try to sort out the codes.

when you changed the catalyst before did he buy a new one, a tokunbo or he constructed his own version. Also did you bother to see the replacement if it looks anything like spoilt one in terms of size?

Tnx dear, it was a direct tokumbo with nets inside. The one dat was removed from mine was open without any net. Dat one eliminated a sound like BOOOOOOOMMM! from d exhaust.

mayor2013:


Which of them did you replace? What year is your sienna again

i replaced d cat dat stays under d car, exact picture of wat u sent me.
Scan result says:
P0420: catalyst system efficiency below threshold (bank 1)

it's a 99 siena sir

nurey:


Go to a technician with scanner, Let him clear all codes in the vehicle then drive the car till the CEL comes on and then rescan and let me know codes generated.

I have never touched my catalyst or had issues with though since I bought the car but always ensure when you have catalyst issues and you can't afford to buy a new OEM replacement deleting the catalyst and using O2 defouler is better than allow kazeem to construct it using non recommended parts which can cause engine failure.

clear codes drive vehicle and rescan let's know the codes

When the technician scanned it it actually showed
p0420: catalyst system efficiency below threshold(bank 1) and then he cleared d codes. Just a bit worried d codes would return.
No vex 4 me oo i knw i'v disturbed u alot wit my wahala.

@mayor2013 when i replaced d pic of d one u sent me it didnt throw any code, it was just by listening to d sound of my engine when i revv high dat my mech detected it

mayor2013:


Catalytic converter is missing or has been yanked off. Have it replaced. Found along exhaust behind fire wall

i have replaced this b4. B4 i did d first replacement it was discovered dat d catalyst melted inside. That net-like stuff. It wasnt yanked off. So i really do not know d condition of d one i replaced sometime ago.
Plz i googled and found p0420 was referring me to 02 sensor dat stays close to d manifold. I rlly dnt knw.

radautoworks:
So happy to see a woman proactive about Auto Care

Tnx dear, please my siena was scanned today and i got
P0420: catalyst system efficiency below threshold (bank 1)

Plz wat does this mean?

Anyone to help me with a picture?
Cc: Gazzuz, AutoElectNg, mayor2013

nurey:


sticky brakes, your issue is still the brake pads and or the brake discs. The smoke is either due to oil on roads getting to it or your brake lines is leaking fluid thereby dropping on the hot surface around there.

The easiest way to do a DIY would be jacking both front legs up move the gear to neutral and roll the tires. if they turn freely good if not then you have a binding brake.

Let the mechanic return the brake shoes it's like one of them is extremely faker than the other.

nurey problem has bn resolved. The problem was d brake caliper, it was bad and they serviced it and heating and smoke went away. After all these works CEL illuminated and when it was scanned the p0420 catalytic something bank 1 was detected. Plz how do i resolve this? Do u have a pictoral view of p0420 catalytic bank 1? I changed one catalyst for 25k sometime in april, the one dat stays under/middle of the vehicle on d exhaust line b4 d silencer. Could it b d same catalyst? Plz note dat the one i changed for 25k did not read on d scanner bt my mech was able to detect it by sound of d vehicle. I forgot to mention dat my fuel consumption has really tripled

nurey:


sticky brakes, your issue is still the brake pads and or the brake discs. The smoke is either due to oil on roads getting to it or your brake lines is leaking fluid thereby dropping on the hot surface around there.

The easiest way to do a DIY would be jacking both front legs up move the gear to neutral and roll the tires. if they turn freely good if not then you have a binding brake.

Let the mechanic return the brake shoes it's like one of them is extremely faker than the other.

tnx alot

@nurey weldone oo! Works bn done on ur siena r similar or almost same work done on my siena few days ago.

Plz my front tyre, the driver side is always hot and sometimes bring out smokes wit burning smell. I changed my brake pad and brake disc to a new one. I complained to my mech he said it's d newly changed brake pad dat it needs time to smoothen. This is d 5th day now yet no improvement. Plz wat cud b d problem?

nurey:


you are welcome. congratulations. Though you would have been safer with brandnew shocks even if it would last a year, two or even more. Those so called belgium can fail in a month but you tried. Easy easy on potholes.

Yes u r right. I actually paid for new ones for front and rear but my mech advised against installing new ones in front, dat belgium is best. I had to heed to his counsel.

I wish to thank everyone for ur assistance so far. AutoElectNg, nurey and all. My vehicle is back to normal, noiseless engine/movement
I had to remove all four shocks that was raised, bought a new replacement, changed the camber, installed new brake pad and viola, problem went away.
Now i know that all the while i've been hating on my vehicle for being too low to the ground and damaging my bumper was a shock problem.
I've never enjoyed this ride before like now, tires r solid to d ground i hardly feel potholes anymore.
Tnx alot esp to nurey, u r the best.
@nurey, i got the shocks at 16k for the two front(belgium) and 15k for the rear(new ones/china)

nurey:


In November last year my mechanic bought for front both sides at 20k brandnew Chinese knockoff and I am still using till date the rear he says was 15k for brandnew but haven't changed it yet.

He gave me tokunbo for both front at 30k or so and I rejected it outright. I have been using the new one and so far no wahala.

Thenk u somuch. I have to settle for new one. Plz one more thing. Can d adjustment made on d shock in any way distort d spring? I intend to just get d shock alone.

nurey:


The spring and shock of the sienna is an entire entity individually. The spring can be separated from the shock and they are both bound together by a bolt. You actually have to apply pressure on the spring for it to shrink enough to bolt it on the absorber for the front. The rear would be easier since both are separated entirely side by side.

The rear springs looks a bit smaller compared to the front springs. This one that you said welding is involved I think if the springs had been cut it has already been compromised and useless to revert it back to stock (don't let them weld the cut away part the welding will never stand the force and pressure it was originally assigned to).

your solution is to buy new stock springs and fit then upgrade your tyre or rim which ever works best for you

you are right sir. I dnt knw hw to describe it but when u look into my shock frm d tyre u'll c d welded part above where it originally was. And plz sir do u hav an idea of price of siena shock front and rear? Between belgium shock and new one(china) which is advisable?

Inception:



You need to reverse the work done on that car back to factory spec.Then you would be fine.


BTW, i really admire your interest and the way you look after your vehicle. Only if my girl had half the interest as you.

Thenk you.

AutoElectNG:
Suspension Geometry altered.

Reverse all the alterations and you should be good

U've always bn of help when in need. Plz does it mean i should buy new shock? The old one has been distorted by cutting off and welding.

nurey:


They didn't raise any spring ooo, where kazeem wan get machine to do that. Its either they swapped the springs to a bigger cars own probably one from a 4runner or they padded the spring (I doubt if it can be done for the sienna due to suspension type).

The issue of bumper scrapping ground is due to tyre type or shock absorbers worn out.

As for your predicament let the mechanic reverse engineer what he did.

I saw the shock absorber. I think what they did was they cut off d spring where it originally was to d shock and raised it up an inch and welded the spring back to the shock.

Gazzuz, oluwaseunla, radautoworks, AutoElectNG, Autologic, obekediamondfuto, thebigkendo, dancock, nurey, captainking... Please come to my rescue. I feel like i've ruined my siena. This vehicle has always been too low to the ground dat my bumper is in a sorry state. On friday i felt i've had enough of it. Took vehicle to my kazeem who advised me to change to bigger tyres or raise the vehicle spring. I opted for the latter. The front spring was raised one inch while d rear was one and half inch. My siena looks horrible now, not only dat, the drive terrain is no longer smooth. The steering appears so loose, always moving vehicle to d left. The steering vibrates non stop while i'm driving. I took d vehicle for wheel alignment and they told me my wheels r ok. I also percieve some burnt smell whenever i'm driving. I'm in tears at d moment. This vehicle was bought american used barely a year ago. Please how do i return vehicle to factory spec?

radautoworks:
After crunching some numbers, we are going to experiment with free parts delivery within Nigeria.

ORDERS OVER 45K WILL RECEIVE FREE SHIPPING WITHIN THE COUNTRY.

AmandaLuv:
Please can I get a price quote for oil control valve bank 1 and it's filter for Toyota sienna 99

radautoworks:


What year is it?

Not to derail the purpose of your thread. I reposted in the right section. Tnx

radautoworks:
N19,000 FULLY SYNTHETIC OIL CHANGE PROMOTION

Until the end of August 2018, N19,000 fully synthetic oil change. Includes up to 5 quarts of Carquest fully synthetic oil, oil filter and free performance check. Additional quarts extra.

Mention coupon AUNTYRADU

Please can I get a price quote for oil control valve bank 1 and it's filter for Toyota sienna 99

radautoworks:


Hello, going to need a year for the vehicle. Also, are you asking for parts and labor or just labor because this thread is focusing on labor.

so sorry. just the parts alone.

radautoworks:


Pretty much any street car, 0.5 hours (N2,500) for oil change.

Suspension system inspection 0.8 hours

General diagnosis (should include visual suspension check) but generally 0.5-1 hour

NOTE: diagnoses are free with repair with us.

please can I get a price quote for Toyota sienna Oil control valve bank 1, and the filter. Tnx

Eyaa.. . Quick recovery dear

Been a while on car talk. Please guys..I'll like a referral of a good Mechanic in umuahia who makes use of scanning tool and understands the dangers of CEL on a vehicle.

Secondly I can't seem to find 5w30 engine oil here. Any referral will do too. Tnx

Cc Gazzuzz, AutoElectNg, Mayor2013, honmusa

OPUSDEI1:
Available

Hello sir, please do u work outside ur state? Can u do outside job in Abia state sir?
Car in question is a toyota siena.

Hmmm

kingreign:

G500, Armada, LX470, Land cruiser, range rover. Land Rover discovery 2 and 3, Lincoln navigator, Ford expedition, etc. The list are endless.


They're big full sized SUVs with Big V8 engines

Tnx for the stated sir. I'v taken note of the SUV's but my question was about cars/sedan.
Most especially toyota. any specific make known for high fuel consumption?
Does siena happen to be amongst them?