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About Ray Niemi
Expertise
ASE Master Rated. Ask any questions about Volvo models up to 2000. Runnability, starting and charging system, diagnostic codes, brakes, front end, where to get certain parts. Should I buy this Volvo or not? I will try to answer your question and give you the knowlege to make the best decision in your case.

Experience
I started working on Volvo's in 1978 at the dealer and attended all the schools and achieved a Master rating. Since 1999 I have worked at independent shops and now own my own shop.

Organizations
Alldata on line repair manuals. IATN network of techs.
ASE rating of Master.

 
   

You are here:  Experts > Shopping > Cars > Volvo > 1991 volvo 740 didn't start

Topic: Volvo



Expert: Ray Niemi
Date: 4/23/2008
Subject: 1991 volvo 740 didn't start

Question
Wow - for the first time in my experience of this car (owned since 79K miles), I was actually stranded.  I do the under-hood tune-up work myself and had recently changed the exhaust/cat/plugs/air filter/oil + added fuel-injector cleaner into fuel; then passed emissions even better than before.  Now 2 months later and 177K.  After a short 10mile drive, I parked the car and minutes later it wouldn't re-start - though the battery is good and starter turned fine.   Car sat for 2 days, then started up first attempt.  Drove home.  I haven't changed the fuel filter for 40K miles...could this be it or should I investigate further?  Much appreciated.

Answer
Lewis,
You can change the fuel filter, but I do not feel that will be the "fix" for the no start. What you needed to know is if when it was not starting, did the fuel pumps come on, both main and pre, is there injector pulse, was there spark? These are the things you need to prepare for in the event the car again will not start. Guessing and replacing parts now is just guess work, not a bad thing for those parts to be renewed, however. If you do want to throw some parts at it, replace the fuel pump and Injector (radio suppression) relays, power stage, flywheel pick up.

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