Vauxhall Vectra car shuddering

Car: Vauxhall Vectra
Variant: 1.8 GLS Manual
Model Year: 1999
Categories: Running Rough, Starting & Power Loss
While driving my car at a set speed it shudders but while accelerating it's fine. It also dosnt seem to pull very hard, My thermometer also dosnt work and it seems poor on fuel consumption but I don't know if these will have anything to do with it?
Posted: Feb 13, 2010 (14 years ago)
if the temp gauge isnt working the ecu could also think the engine is cold when its hot therfore it runs rough so id look at fixing the temp gauge/sender first
Posted Feb 13, 2010 (14 years ago)
Could check engine thermostat and temp transmitter / sensor . If thermostat jammed open engine wont reach operating temp. affecting performance and efficency .
Posted Feb 13, 2010 (14 years ago)

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