Question about 1991 Volvo 740

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Volvo 740 1991 stall

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.

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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

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czaa
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SOURCE: Volvo V40 Stall when foot off pedal and DSA light on

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

  • 1 Answer

SOURCE: My 1999 volvo S70 will lose power as I am driving.

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

  • 1 Answer

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

Goofguyster
  • 379 Answers

SOURCE: 1991 740 volvo stall after pedal is press

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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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.

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