Reluctance in increase in RPM

kavesh55 · 31st October 2010, 23:27

Hello bhpians,

This is about a problem that I see in my friends car. The car in question is a 2004 esteem. The tachometer works properly (I presume) since the idling without the ac on shows 800-900 rpm and with the ac on shows 1100 rpm. On pressing the accelerator during stationary, the rpm does not go over 3000 rpm. Even whilst driving there is a reluctance in going over 3000-3500 rpm. The car's meter mentions the redlining at 6000 rpm.
On a Getz ive observed whilst stationary the car can be revved to 5000 rpm.

What could be the problem ?

The car has got an oil change done just 1000kms back ?

GTO · 2nd November 2010, 17:13

Kavesh,

- How many kms has the car run? Is she throwing out a check engine light? This sounds similar to what I faced once when my car went into "limp home" mode (i.e. safe mode).

- Sounds like a problem with air flow. Check that your air intake / air filter isn't choking. If that's okay, check the fuel filter if its clogged up. Next, check the MAF / O2 sensors and fuel pump (for inadequate pressure)

Quote:

The car has got an oil change done just 1000kms back ?

I sure hope he filled the right oil!

kavesh55 · 2nd November 2010, 18:06

The car has run 36k kms in all. 34-35k when it had gone for a tune up, which included a change of oils and filters.
will check the air filter.

IndrojitSircar · 4th November 2010, 03:26

A choked Catalytic converter could also be the reason for making the RPM reduce. Since the car has got a new set of filters i presume that it shouldn't be a problem of a choked air cleaner or a Fuel filter. The Rev limit on this car is 6700 RPM so it is definitely under performing. Keep us updated on the status of the car.

dhanushs · 6th November 2010, 15:22

Check if your induction coil is OK. Inspect/Clean and replace spark plugs, cord wires if necessary.

Still if the problem persists, I would suspect fuel adulteration, and cleaning of fuel filter/tank/lines is recommended.

kavesh55 · 20th November 2010, 21:20

The engine was scanned, all the sensors are working. There may be two issues-
1. The plug wires my not have the necessary resistance
2. The optical sensor in the distributor needs to be checked.

31st October 2010, 23:27	#1
kavesh55 BHPian Join Date: Nov 2007 Location: Mumbai Posts: 748 Thanked: 49 Times	Reluctance in increase in RPM Hello bhpians, This is about a problem that I see in my friends car. The car in question is a 2004 esteem. The tachometer works properly (I presume) since the idling without the ac on shows 800-900 rpm and with the ac on shows 1100 rpm. On pressing the accelerator during stationary, the rpm does not go over 3000 rpm. Even whilst driving there is a reluctance in going over 3000-3500 rpm. The car's meter mentions the redlining at 6000 rpm. On a Getz ive observed whilst stationary the car can be revved to 5000 rpm. What could be the problem ? The car has got an oil change done just 1000kms back ?
	() Thanks

2nd November 2010, 18:06	#3
kavesh55 BHPian Join Date: Nov 2007 Location: Mumbai Posts: 748 Thanked: 49 Times	The car has run 36k kms in all. 34-35k when it had gone for a tune up, which included a change of oils and filters. will check the air filter.
	() Thanks

4th November 2010, 03:26	#4
IndrojitSircar Senior - BHPian Join Date: Apr 2009 Location: Kolkata/Delhi Posts: 2,318 Thanked: 972 Times	A choked Catalytic converter could also be the reason for making the RPM reduce. Since the car has got a new set of filters i presume that it shouldn't be a problem of a choked air cleaner or a Fuel filter. The Rev limit on this car is 6700 RPM so it is definitely under performing. Keep us updated on the status of the car.
	() Thanks

6th November 2010, 15:22	#5
dhanushs Distinguished - BHPian Join Date: Oct 2009 Location: Chennai Posts: 4,282 Thanked: 10,180 Times	Check if your induction coil is OK. Inspect/Clean and replace spark plugs, cord wires if necessary. Still if the problem persists, I would suspect fuel adulteration, and cleaning of fuel filter/tank/lines is recommended.
	() Thanks

20th November 2010, 21:20	#6
kavesh55 BHPian Join Date: Nov 2007 Location: Mumbai Posts: 748 Thanked: 49 Times	The engine was scanned, all the sensors are working. There may be two issues- 1. The plug wires my not have the necessary resistance 2. The optical sensor in the distributor needs to be checked.
	() Thanks