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Car Forum / Volvo Cars / February 20071986 740 Turbo Dies at low idle
I just purchased my first Volvo a week ago as a spare vehicle. I drove about 50 miles today and pulled over on the side of the road (highway) to snap a photo (and left the car running). I returned to the car and took off back on the highway, the car reved up to about 3200 rpm then shifted, after shifting it felt like it lost power and I was having trouble maintaining 55 mph without it down shifting on flat surface. So I was almost to my family members house in Southern Oregon, when I pulled off the highway to a dirt road I lost all power and the car died. I started the car and it felt as if it was missing, and had to use the accellerator to keep the car going. Died 3 times in 1/20th of a mile to the house at which now I am stranded. We thought maybe it was not getting gas (fuel filter) but when I pulled the dip stick the oil smelled of fuel which makes me think it may be flooded? It is injected though. Could this be the mass air sensor? There are so many vaccuum lines because it is an Intercooled Turbo I would not know where to begin? Could this be the fuel filter? How major could this be? I can keep the car running with the throtle, but it seems to run rough at certain rpm's, and will die if not. Also I was able to keep the car running at idle for a few minutes where the idle would drop to almost die, then resume normal idle? I do not know much about Volvos, but I would sure like my experiance with my first volvo to be a good one, but I am getting off to a rough start. Any suggestions will be helpful, and I am open to anything, as I am stranded 60 miles from home with my pregnant wife. Berkeley > I just purchased my first Volvo a week ago as a spare vehicle. I drove about > 50 miles today and pulled over on the side of the road (highway) to snap a [quoted text clipped - 20 lines] > > Berkeley First thing to check are the large hoses between the turbo, intercooler, and intake manifold. Sometimes they develop tears or pop off. It could be the air mass meter, try unplugging it and see if it idles any better. You'll also want to check the engine wiring harness, this car is right smack in the middle of the biodegradable wiring era and if the harness is original it is probably shot. Look at the exposed wires where they plug into things like the oil pressure switch, coolant temp sensor, etc, if the insulation is cracking and crumbling off the wires, replace or rebuild the harness. My 740 was behaving similarly, intermittent loss of power and then one day it just died and wouldn't start. When I cut open the harness section under the intake manifold, it was a bundle of mostly bare wires in a pile of insulation dust, amazing the car ran as long as it did. Take care of a few common issues that crop up though and you've got yourself a pretty solid car. The basic mechanicals of these things will run pretty much forever. >> I just purchased my first Volvo a week ago as a spare vehicle. I drove >> about [quoted text clipped - 39 lines] > First thing to check are the large hoses between the turbo, intercooler, > and intake manifold. Also closely check the short hose between the Idle Air Control Valve (under the throttle body) and the intake manifold. If it cracks it will cause exactly those symptoms - anyway, that's what happened on our '85. If it is cracked it can be patched with electrical tape for now, but use lots of layers because it has to hold against the turbo boost. Mike Sounds ignition related......i'd replace the plugs, wires, cap and rotor. If you're stranded and just want a quick fix to get home, then just do the wires.....that is probably where the failure is. If you want a really quick and dirty fix, then just wrap electrical tape around the spark plug boots as the wires are probably shorting there. That may at least get you and the car back home. >Sounds ignition related......i'd replace the plugs, wires, cap and >rotor. The car jsut had a full tune up about 1 month ago, cap, rotor, wires, plugs all done by Volvo. I am thinking it has a fuel issue. I am going to check vaccuum lines and the turbo lines. Started the car today, and it will run for about 5 seconds then die, started again revved the engine to 2 k rpm, then just died as well. I seem to think it isnt getting fuel, or too much fuel. after starting it 4-5 times it smeeled very badly of gasoline and a big poof of smoke shot out the exhaust on our last try. (wasn't blue smoke, just like a flooded engine smoke) Does anyone know how I might be abl to tell if the car is flooding? What could cause flooding in an injection? Thanks so much for everyones help so far! >>Sounds ignition related......i'd replace the plugs, wires, cap and >>rotor. [quoted text clipped - 9 lines] > tell if the car is flooding? What could cause flooding in an injection? > Thanks so much for everyones help so far! So far it sounds exactly like a bad air mass meter. Did you try unplugging it to see if it runs better? |
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