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.
Question i replaced upper hose from block to heater core. after that car will not start(volvo 88 240)the thermal T. Switch wire was accidently disconnected...i can't find the switch. also there is no elec. going to main fuel pump...the engine turns over but no fuel...i checked the fuel pump relay... there is 12 volts emitting from term. #30, but no elec. coming out of #87...so i seem to have two problems...or are they somehow connected? thanks! paul
Answer Paul,
There is a temp sensor in the head between cyl 3 and 4 a little hard to see. That might be what you are talking about. Make sure that when the engine is cranked over the black/yellow wire at the pump relay is making a ground through the control unit. No ground pumps will not work.
