There’s an issue with my car — it's a 2005 Honda Civic Prosmatec (Automatic)

[Xulfiqar]

Install the thermostat, make sure the engine gets to temperature, it also ensures the transmission oil comes up to temperature,

What is the transmission oil temperature when this happens?

[fycel_khan]

It usually happens when car hot like today after driven 16 km car give same jerks even without ac when shifting 2nd gear..

How to check transmission temperature

[fycel_khan]

This is not happening on cold car. When car is hot and temperature is at optimum in middle after driven much km.

Change gear oil, solenoid, plugs, fuel filter and pump.

I think it may be bad ignition coil as car jerks like coughing one shutter. Rest of time work fine with no issues just jerks when 2nd gear change.

[Xulfiqar]

A bad ignition coil doesnt affect shifting for one sequence only.

[fycel_khan]

Then you can advise what it can be. As iam reallt frustrated

[fycel_khan]

This happens when i service AC and after that car give jerk on sifting from 2nd gear on ac and without ac.

Should i need to calibrate gear again or what

[fycel_khan]

Should i change fuel pump . As tomorrow i will be checking the pressure of it. As last time same thing happened 2 years back changed pump and coil Issue was solved hard jerk was gone just minor jerk i feel when gear shift from 2nd.

But this time need to knew why this happened to get permanent solution

[fycel_khan]

Any one help me out.

Either is gear or fuel pump or another issue.

[pwuser174403931723]

Salam. I would suggest change gear oil. If that is already done then 2nd thing would be to check the gear mounting (kursi). Most cars usually have 3 or 4 mountings and often the harsh shift felt thru the car isn't anything to do with transmission but that the gear mounting has gone bad and needs to be replaced so that it can once again cushion the normal gear change vibration.

[fycel_khan]

But why it jerks harsh like when car is driven 15km without ac and jerks when changing to 1st gear only.
Same on ac as well but early then without car.

Im guessing fuel pump issues. As when it get hot pressure get less.

[Xulfiqar]

First gear jerk is a classic sticky situation in any oldschool honda autobox, the linear solenoid is not exhausting pressure correctly.

Connect a decent scanner and see if you can plot the fault timeline.

Dont guess, pay a real workshop to do proper diagnosis,

[pwuser153796752163]

I'm 40 years old now, owned my first car when I was 16, I am yet to find a "real" workshop in Karachi.

[fycel_khan]

linear solenoid

Sure let me check this tomorrow and update on this. As if you any knew any one from Karachi do let me knew too in north or gulshan area.

[pwuser174403931723]

True. I'm 43 and lived most of my life in Sharjah UAE. Compared to Sharjah, a big city like Lahore with a much bigger population has sadly a very low number of reputable garages.

[Xulfiqar]

Sorry to sound crass

Most smaller workshops in uae do completely garbage work. Same as Pakistan, worn out tools and sloppy workmanship.

And worst of all, dangerously lacking level of working knowledge.

[pwuser174403931723]

Haha..no it's ok. You have your own opinion and you are absolutely right. There are many shoddy dodgy garages there also..but still if you just look at the numbers it's no comparison. The number of garages who do professional work is far higher there than in Lahore, while Lahore has a significantly higher population.

Perhaps it's to do with the fact that Sharjah and Dubai have a pretty big export market both for Lhd and Rhd vehicles and many used cars come from USA,Japan etc.
And need repairs (if not a clean title). Hence more work done by all garages and more expertise gained through trial and error.

[Xulfiqar]

The sentence trial and error should never be used when mechanics are working in a garage environment.

Its not a practice, its a trade.

With my experiences there (I still do remote sessions for some) - the sheer quantity of tom foolery is beyond scope. And these are also at larger establishments too.

One shop had no idea when I told them they need to find out how much machine work was done to a block and heads of a nissan v8, this dictates parts purchase and steps. They had timing mismatch issues as nissan do not have point zero set learn cycles for the crank and cam sensor synchronization.

This is literal elementary kindergarten level stuff.

Or asking them to log a drivecycle on a modern GM or Ford product and you hear crickets

[Xulfiqar]

The 3 i knew have left Pakistan.

[pwuser174403931723]

Very rightly said Xulfiqar Bhai. And I used those words on purpose because sadly even though they have experience now, the way it was gained in most circumstances was through trial and error with many a customers at the receiving end.

A professional garage should have knowledgeable mechanics and said knowledge should be acquired in a learning environment (professional workshops etc) and not through trial and error at the expense of the end customer.

[pwuser174403931723]

I am a genuine parts dealer by profession. Garage being an allied business I ventured into it in 2020 at samsani Rd Johar town but had to close down after 5 months not because of work but because the whole road was not commercial approved by LDA which I found out the hard way(long story). I'm surprised that given Lahore population and geographic size, they don't have more dedicated commercial areas for garages. In a small city like Sharjah, there are more than 18 industrial areas.