Question about 1991 Volvo 740
A few minutes after starting the engine, it stalls. If I step on the pedal, it doesn\'t respond, the engine loses power and shock.
I own a 1992 740 and have been through the stalling issue. Tried everything mentioned in other suggestions. Expensive and aggravating. Finally turned out to be the spark module. My Volvo has the Rex/Regina engine management system and the module sits on the left front fender. The wire to the distributor is very long and runs to the bottom of the distributor. As a start I would check and clean all wires leading to and from the coil module. Sometimes the high voltage lead gets dirty or corroded. Remove each connector plug (one at a time) spray a little contact cleaner, re-insert it a couple of times. Sometimes just turning the high voltage lead will clean it a little.
Also check to be sure the manifold pressure module is properly connected. It has a thin vacuum hose running from the module (on the driver's side inner fender near the firewall) to the top of the intake manifold. If that hose is loose or disconnected, car will run rough and stall.
Posted on Mar 19, 2014
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Posted on Jan 02, 2017
needs a throttle body cleanin--idle air motor maybe aging--get car scanned soon--mite also hav a vacuum leak--get a repair manual for troublshoot procedures
Posted on Nov 06, 2011
This could also be the mass air flow meter ETS in your book---spray some brake cleaner into the airbox removes the oil from your meter so the car will no how much gas to shoot into the engine...im a volvo sales person
Posted on Jun 24, 2009
SOURCE: engine loses power and stalls
try adjusting the throttle position switch very hard to adjust right car will hesitate , not idle properly and hesitate when accellerating if not adjusted properly.
Posted on May 12, 2010
check the basics like air filter so its getting clean air make sure the throttle body plate is clean change the spark plugs of there old
Posted on Apr 05, 2013
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