Question about 1998 Volvo S70
1998 Volvo S70
- no history of automatic transmission problems
Lately our car has started showing these symptoms:
1) When starting out the car seems to stumble (the feeling is similar to starting out on a slick surface) there is no racing of the engine as in usual transmission slippage
2) When idling the engine seems like it may stall out.
3) The symptoms occur at random and only occasionally.
Car does not display any misfiring of engine and automatic transmission level is ok. Car has approx 150,000 KM.
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Posted on Jan 02, 2017
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Oct 01, 2015 | 1998 Volvo S70
Apr 08, 2014 | 1999 Volvo S70
Nov 10, 2012 | 1998 Volvo S70
following are the general instructions on the start of diagnosing any
electronically controlled engine or transmission problem.
engine and the automatic transmission (transmission control is only
for automatics, engine is still computer controlled no matter the
transmission type) in this vehicle are computer controlled and in
most cases when a fault occurs a fault code is stored in the memory
of the computer control module. There are exception to this, such as
the Mass Airflow Meter and fuel pressure problems. What must be done
is to have all the basic testing done such as a scan of the system
for fault codes as well as a check with a live data scanner tool for
engine functions that are not within range of normal, a trained
technician is required to know what is correct and what isn't, then
based on careful diagnostics done from a factory repair manual the
correct part is replaced or the wiring repaired or the computer
replaced (known as the PCM), which is very rarely the problem. Other
basic checks must be done as well such as mechanical problems with
the engine as well as engine state of tune and mileage on the engine.
The transmission can have mechanical issues as well such as no gear
engagement at all or a failed pump or other pressure related
problems. Also engine mechanical problems ca cause many
drive-ability related problem such as rough idle and other symptoms
Oct 22, 2012 | 1999 Volvo S70
Oct 10, 2012 | 1998 Volvo S70
Jun 28, 2010 | 1998 Volvo S70
Aug 01, 2009 | 1998 Volvo S70
Apr 28, 2009 | 1998 Volvo S70
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