Ask Xulfiqar - An Automotive Encyclopedia

[deltree]

Thanx deltree.But noises are coming from rear left side.It can be a shock absorber problem??

Tell me more about the car and the age. It could be the seat too. If you want to check shock absorbers, tell someone to drive your car, follow them in your car in the back. The give away for a dead shock is at least in the rear you can discover by seeing excessive play in the wheel in the minutest of bumps. Any car riding on the same road on another lane might not have the same kind of play, you will realize this easily. The tire will literally be bouncing!

[tintin1]

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[Fahad.Ayub]

In last 10 days, I made two round trips. One to Peshawar and other to Islamabad. Car drove like 1200 km in one day and 850 km in other day. I observed oil dripping where I park the car. Have it checked by mechanic and he said its gear seals are leaking. There are two seals. One at upper side and other at down side. Its upper side seal is leaking and have to replace it. Tomorrow I will drop my car to workshop for this job.

Its gear oil will be drained. And to fill the new gear oil, its dip stick says “Dexron-II”. But we don’t have it available here in PK.
Caltex and Shell websites are very complicated to find. But on ZIC website I found

ZIC XP II (Hi Tech Lubricants Ltd)
ZIC Dextron III (Hi Tech Lubricants Ltd)
ZIC Dexron IV (Hi Tech Lubricants Ltd)

They mentioned Dexron IV is backword compatible. Which one will be OK to choose Dexron-IV or Dexron-III or ZIC XP II.
(previous owner never informed what gear oil he used, but till yet the color of its gear oil is slightly red).

Toyota Crown 2JZ

toyota Dextron II is available here (in Karachi atleast) it would be a bit costly though

[tintin1]

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[Line2nature]

Zulfiqar bhai first of all thanks a lot and jazak Allah for sharing your knowledge with us pakwheelers,
I need ur kind suggestions about 2 matters, first is about engine oil choice for my 12 aqua 84k at clock, prius c's owner manual says "api sn gf5 0w20 is best choice and a oil with higher 2nd figure will be better suited if vehicle is operated at high speeds or with extreme load" according to local market I have options of zic 5w20 (currently in car) and zic and kixx 0w30, liqui moly 5w30, mobile 1 0w40, kindly suggest me right grade and brand of engine oil? for smooth and good engine operation,
2nd is that I want to use Toyota injector cleaner, is it OK to do so?
A lot of Thanks in advance,

[sajid00001]

Tell me more about the car and the age. It could be the seat too. If you want to check shock absorbers, tell someone to drive your car, follow them in your car in the back. The give away for a dead shock is at least in the rear you can discover by seeing excessive play in the wheel in the minutest of bumps. Any car riding on the same road on another lane might not have the same kind of play, you will realize this easily. The tire will literally be bouncing!

You may be right its old toyota hatchback(kp60).It does not bounces on road.it only makes that noises on jumps or new karachi roads(you can well understand that roads which are washed out by water).

[deltree]

You may be right its old toyota hatchback(kp60).It does not bounces on road.it only makes that noises on jumps or new karachi roads(you can well understand that roads which are washed out by water).

The wheel is supposed to bounce not the car. The hatchback and seat relationship should also be checked cuz I have gone through two cultus's and I believe these sounds do show up. Aapki tou purani toyota hai, our 2013 1.6 corolla has its shocks done at under 50k on the left side both front and rear. It sees a bit of the interior sindh maybe thats why. So I would not be surprised if all your shocks are already dead. That dhagg dhagg sound is supposed to come when you hit those pot holes.

[tintin1]

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[mypakistan]

Xulfiqar bhai,

Need advice regarding hydraulic clutch of my LC 70 series, SOME TIMES its little difficult to put into gear while engine running, I floor the clutch in all the way down by force and put in to first gear. Also feel the clutch not press full during all gear changing.

Pl advice if I adjust the nut (circle red in above pic) in clutch master cylinder to solve my problem ?

[Xulfiqar]

Pl advice if I adjust the nut (circle red in above pic) in clutch master cylinder to solve my problem ?

do not adjust this - this is only adjusted ONCE when a new master cylinder is installed - if you push it forwards you will lose pressure in the clutch as it wont have full stroke anymore.

Your problem is loss of pressure at the slave cylinder or a worn pilot bearing.

[Xulfiqar]

In last 10 days, I made two round trips. One to Peshawar and other to Islamabad. Car drove like 1200 km in one day and 850 km in other day. I observed oil dripping where I park the car. Have it checked by mechanic and he said its gear seals are leaking. There are two seals. One at upper side and other at down side. Its upper side seal is leaking and have to replace it. Tomorrow I will drop my car to workshop for this job.

Its gear oil will be drained. And to fill the new gear oil, its dip stick says “Dexron-II”. But we don’t have it available here in PK.
Caltex and Shell websites are very complicated to find. But on ZIC website I found

ZIC XP II (Hi Tech Lubricants Ltd)
ZIC Dextron III (Hi Tech Lubricants Ltd)
ZIC Dexron IV (Hi Tech Lubricants Ltd)

They mentioned Dexron IV is backword compatible. Which one will be OK to choose Dexron-IV or Dexron-III or ZIC XP II.
(previous owner never informed what gear oil he used, but till yet the color of its gear oil is slightly red).

Toyota Crown 2JZ

the only seals that are external to the gearbox are the extension housing seal, the torque converter seal and the manual valve seal, - which one is leaking? - mind you only the extension housing seal is replaceable with gearbox in the car.

Or is your mechanic talking about the sump gasket?

You can use Dexron III rated oil or Dexron VI too - dex VI is a bit better blended - its a semi synthetic blend, it remains fluid at much lower temperature than dex III and has better bite for the clutch packs (quicker shifts).

The only issue with Dex III today is that its name owner General Motors has dropped its blending licensing globally, meaning whatever oil is being sold as DIII is actually not true DIII but an oil that closely mimics the original formulation.

Some blending companies are still using the old formulation like mobil but some have changed it a bit to lower its cost.

[mypakistan]

do not adjust this - this is only adjusted ONCE when a new master cylinder is installed - if you push it forwards you will lose pressure in the clutch as it wont have full stroke anymore.

Your problem is loss of pressure at the slave cylinder or a worn pilot bearing.

pilot bearing and piston in slave cylinder already changed before six month, can soft line be the culprit ?

[Xulfiqar]

I would suggest do a proper bleed procedure, its quite hard to do in a clutch because the slave is in an awkward location.

I used to do a trick with a clear pipe on the slave nipple, make an upward loop - this loop traps brake fluid and prevents air from being sucked into the slave cylinder. On some I have had to employ the use of a front wheel brake caliper bleeder nipple to push brake fluid backwards into the clutch, hence expelling all air.

[abdkhan2]

@xulfiqar
car is heating up after timing belt change,after the change I went to isl and the car was heating up alot,also not performing well on cng.plz help me have to go lhr tomorrow

[PlayMaker]

@xulfiqar Sir, I'm facing heating issue on my Mehran. The car's radiator fan is showing a strange behaviour i.e; the fan turns on late. It suddenly started to show this behavior. The fan works every time but above the temperature at which it's supposed to operate.
Is there any sort of adjustment needed or the thermostat valve or auto on switch is faulty or any other problem? Kindly guide.

[saboor73]

@xulfiqar
car is heating up after timing belt change,after the change I went to isl and the car was heating up alot,also not performing well on cng.plz help me have to go lhr tomorrow

Which car?

[wasim625]

Dear @xulfiqar bhai asalam u alikum. i dont have any questions just stopping by to say Hi since it has been a while we had any interaction due to my work loads and busy schedules. i hope you'er fine and in the best of your health.

Sent from my 07-18G using Tapatalk

[faiz.aslam.121]

Hi,

My friends C30 AMG Diesel (231HK 5-Cyl, chiptuned to 280hk ), is using coolant. No signs of bad headgasket, no oil in coolant reservoir and no leakage. Can it be normal in the C30 AMG? It is driven 210,000 km.

[Xulfiqar]

Dear @Xulfiqar bhai asalam u alikum. i dont have any questions just stopping by to say Hi since it has been a while we had any interaction due to my work loads and busy schedules. i hope you'er fine and in the best of your health.

Sent from my 07-18G using Tapatalk

Thanks for asking, not many do that anymore.

[Xulfiqar]

Hi,

My friends C30 AMG Diesel (231HK 5-Cyl, chiptuned to 280hk ), is using coolant. No signs of bad headgasket, no oil in coolant reservoir and no leakage. Can it be normal in the C30 AMG? It is driven 210,000 km.

it shouldnt consume coolant, does this car have a heated windsheild washer tank?