Low Top Speed, Loss Of Power; Excessive Fuel Consumption - Volvo 740 GL Owner's Manual

1985 Volvo 740 GL, GLE, Turbo
pg. 76 Service diagnosis
Condition: Low top speed, loss of power
Possible cause
Air filter clogged.
Throttle
misadjusted.
Fuel filter clogged.
Condition: Excessive fuel consumption
Possible cause
Fuel lines leaking.
Spark plugs worn.
Air filter clogged.
Oxygen sensor system
faulty
* Should be checked by a Volvo dealer.
file:///K|/ownersdocs/1985/1985_740_GL_GLE_Turbo/85740_05.htm (16 of 16)12/30/2006 7:46:09 AM
Correction
Check air filter.*
Check that the throttle touches the high speed stop when the accelerator is fully
depressed.*
Clean fuel tank filter and replace fuel line filter.*
Correction
Check tightness.
Replace plugs.
Check/replace.*
Check for open circuit or other electrical fault.
*
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