AboutRay 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.
Expert: Ray Niemi Date: 6/23/2008 Subject: 1984 245 won't start
Question One afternoon car wouldn't fully start after running fine that morning (and for months as daily driver). It would crank over, start and die immediately. Used other car until now trying to fix it. Replaced main fuel pump. Will crank over, has spark, but no gas flow when trying to start with key. Jumped 5&7 fuses can hear relay (at passenger side) click and both pumps operate, gas flows at engine before injectors. But when turn the key the relays/pumps stop. Ignition switch shorting out?
Thanks for any help on what to check next.
Don
Answer Don,
What is the fuel pressure at the fuel rail? Using a noid test light for injectors, plug it in and crank over the engine to see if you are getting the pulse for the injectors. Most times your problem turns out to be the fuel system control unit. No signal to open the injectors.