Prospective new (used) owner here with a few questions... - Toyota Yaris Forums

09sedan · 04-28-2012, 09:26 PM

common problems on 2007/early 2008 yaris vehicles:

voltage regulator corrosion in the alternator = requires a new alternator or you can follow CTScott's DIY on how to replace it yourself..

rear ABS harnesses corrode, seem to have been fixed in late 08/ early 09 models.

water pump going bad on pre 2008/9 engines.

very minor cases of oil leaking from #1 cylinder from the head gasket.. reported various years up to 2010 cars... but very rare occurrences, verify by checking the far left cylinder on the side of the engine facing towards the firewall.

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04-28-2012, 09:26 PM	#6
09sedan Drives: 2009 yaris sedan Join Date: Apr 2011 Location: toronto Posts: 141	common problems on 2007/early 2008 yaris vehicles: voltage regulator corrosion in the alternator = requires a new alternator or you can follow CTScott's DIY on how to replace it yourself.. rear ABS harnesses corrode, seem to have been fixed in late 08/ early 09 models. water pump going bad on pre 2008/9 engines. very minor cases of oil leaking from #1 cylinder from the head gasket.. reported various years up to 2010 cars... but very rare occurrences, verify by checking the far left cylinder on the side of the engine facing towards the firewall.