AboutRoger Patricio Expertise Can answer all Volvo car questions. European and Canada spec cars are different but I can try to help you.
Experience I am a Certified Volvo Tech at in Independent Volvo Repair shop. I grew up around Volvos and decided I wanted to do it professionally. I worked at the dealer for about a year then I went to work at an Independent shop which I have been with for 10 years.
Expert: Roger Patricio Date: 7/1/2008 Subject: Occasionally not able to start my 1991 Volvo 740
Question Hi Roger
I have a 1991 740 GL sedan and have lately had occasional problems with starting. The first time it did this I could not start it and a local mechanical shop where they replaced the coil, and it worked fine for a few months. Now it is doing it again. Approximately once a week it has trouble starting. I had it towed back to the shop and, sure enough, they found it started every time for them (cold or hot) and suggested it might be a sensor or something. The engine is getting lots of cranking power (I even tried battery boosting) and there is lots of clean gas (new filter). Lately when I first turn the key and it sounds like it might not start, I then put the gas pedal to the floor and hold it there and it starts up. The problem usually occurs after it has been sitting for a while or overnight, and once it has been running without being turned off for more than 3 or 4 hours there is seldom a problem. Any ideas? Thanks, Murray
Answer Murray, depends on what fuel system you have. If its the regina/rex system, then there may be an issue with the fuel pump. If its a bosch system, there may be a faulty impulse sensor or ignition power stage issue. Its frustrating for me as a tech to have a car not duplicate the problem. I dont just swap parts and send the customer on their way. On this issue, I would have to have the car do the problem, then perform tests to see whats going on. I hope this helped. Roger
