Aoa.
I have Santro Club 2009 model and 150,000 km. It's only first hand car and I've been using it past 5 years while taking care of anything important or minor on time including Oil change and engine tuning as well as all other this and that. Please be patient with the following long text as I can't tell specifically what's the problem but can explain what's happening... Thanks in advance...
I've had some odd experience with my car that it suddenly misses the speed (like no power) once a while on random basis when I am going on a constant-low speed (e.g. 80km or below). The missing is not continuous but may occur randomly once in 5 sec, 10 sec, 20 sec, or sometimes it does not.
This issue was first appeared a year ago and then it stopped itself when the mechanic didn't respond with some satisfactory options to fix this. Anyhow it stopped with this issue itself Thank God.
Now for a few weeks, I had been facing some pick issues along with the top speed issue and increased consumption of patrol. It could reach up to 140km HARDLY on motorway. Second I was not feeling very light driving the car. Like it was heavy and making a lot of force to pull something with it.
For the moment forget the missing issue as it had been stopped already so I didn't tell about it to the mechanic again. I just told him about the recent issues with Pick, Top speed and the Patrol consumption. It was just yesterday when I asked him to just replace the "Butterfly" as he had already pointed this to be getting wear and loosing air space in between. He told it makes issues with the patrol consumption but didn't mention it will fix the pick and top speed. So yesterday, he just pulled it a few other things attached and cleaned them well. Sent the butterfly with its outer parts to get it replaced. When back, reassembled the parts... and done...
Now specially to test again I drove through the Motorway.
The light weight drive was what I felt thankfully.
Pick was also some good but not back to impressive state.
The top speed still could go up to 140km but not very hardly...
Patrol consumption test is due as the tank is not yet closed to empty... but I feel it would still be the issue.
Lastly the major thing again re-appeared. The same random-missing problem I story lined above... :-/ the same way on constant-low speed....
Any idea what could be the problem with it?
4 things to fix completely: Random missing on Patrol, Pick is not impressive, Top speed does not seem to be enough. Patrol consumption...
Current Patrol consumption is around around 12 km/liter on highway.
PS. CNG consumption is also effected and the top speed goes beyond 120km but hardly. THERE IS NO MISSING PROBLEM WITH CNG. It was only on Patrol and again appeared with Patrol...