Question about 1991 Volvo 740

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Back fire and hard starts 1991 volvo 740 s.w. do not know where timing marks go on the slant engine

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I had very simular problems. Is it running hard with the tach bouncing. I replaced my ignition module with one from Ebay $25 delivered. They run about $120 new Bosch is the best. I also first looked over the whole ignition system and the fuel system only to find a flakey Ignition module. there is a computer to give you codes as well and it is easy to do. It has flashing codes. You can find its instuctions and fault codes on brickboard.com.

Hope this helps

Posted on May 14, 2009

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Posted on Jan 02, 2017

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1 Answer

Need timing marks for 1991 volvo 740 nonturbo


Click here to see timing belt repair guide.

Dec 24, 2012 | 1991 Volvo 740

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Timing for a 1991 volvo 740


Hi, this is how to align timing on a 1991 Volvo 740.
There are marks for all three. Cam and Aux shafts have dots on face of outer gear. Cam lines up with mark on rear timing cover(about 1 o'clock). Aux lines up with mark on seal housing (about 3 o'clock) and crank lines up with mark on seal housing (about 12 o'clock).

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Aug 08, 2010 | 1991 Volvo 740

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Jan 23, 2010 | 1991 Volvo 740

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My 91 volvo 740 won't start


Could be that there is a clog at the tank-there is a screen there- can be accessed through access panel behind rear seat- also try taking off fuel line at engine and starting engine--if there is fuel present then I would rule out the tank screen problem. Good luck--let me know if that helps. C

Jul 11, 2009 | 1991 Volvo 740

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Mar 29, 2009 | 1992 Volvo 740

1 Answer

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try pushing the 4 wires on the radio supression relay into the connector, then try starting it... does it start, run, then die? those connectors ****, i've had the same prob. have you let it huff on some ether? (starting fluid) does it come to life? that would confirm weather or not it its fuel related. my 740 i was loosing voltage to my injectors 10 volts and under, causeing them to inttermittantly not fire, caused by a bad connection at that supression relay.


Feb 13, 2009 | 1991 Volvo 740

1 Answer

If timing belt on a 1991 740 volvo breaks while driving will it damage the engine?


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Jan 07, 2009 | 1991 Volvo 740

1 Answer

Adaptive idle control - 1991 volvo 740 -B230 engine


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Bret
RepairPal.com

Nov 10, 2008 | 1991 Volvo 740

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