20 Most Recent 1988 Volvo 740 - Page 2 Questions & Answers

It's either a faulty starter inhibitor switch or a faulty starter solenoid. The fact that the fuel pump does not power up points strongly to the inhibitor switch. Try another one, they're not expensive.

Horrible squeal. If my 740 made a horrible squeal I would be upset also. These ideas - timing belt has somehow slipped out of time. Easy check. One of the other belts are slowing the engine any of them can squeal: The alternator belt The power steering belt The fan belt. Does the noise occur only when driving? Does the engine sound normal when revving in neutral? Does turning on the lights or a/c affect the noise? Does the power steering work when car is standing? Is the squeal heard when turning the wheels. A logical diagnosis will identify and eliminate these easy to fix problems.

remove ash tray and there will be a small bar at the bottom ,lift gently and pull the fuse panel should now be in sight i hope this helps you

Check fuel pump relay and fuse. When tank runs dry the pump overheats , then it gets covered with cold fuel and causes it lock up. Then power is sent to it by trying to start and can overload the circuit blowing 1 or both of them.

you should have two fuel filters on that car one under the car on the fuel line it sounds like its not getting fuel right when did this start after the plug and wire change or after the timeing or after the fuel rail thing have a fuel pressure test done on it

dropping fuel tank is not that hard, drive up on ramps for clearance and unbolt straps, be careful not to break fuel line when lowering tank, good luck

It sounds like a good size air leak somewhere in the intake system. Check all the vacuum lines for cracks or loose connections. Check for gasket leaks by spraying brake parts cleaner along the intake manifold mating surfaces and listen for an increase in engine rpm . Don't use carb cleaner for this, or you could end up with an engine fire.

Hello. i have owned many 740's, 240's, 122's, and 850's. I have done my fair share of transmission swaps. The transmission tag is located right above the trans-oil pan and directly below the od seloind on the drivers-side. if your volvo 740 is a non-turbo, the transmission is AW-70L, if it is a turbo-model then it is AW-71L. Good luck :)

POSIBLE DIRTY INJECTORS , OR DIRTY THROTLE BODY

A BAD WHEEL BEARING CAUSING WHEEL LOCK UP WILL CAUSE ABS LIGHT TO COME ON.CHECK ALL OF YOUR WHEELS OR TIRES AND SEE WHICH ONE THATS BARLY TURNING WHERE WHEEL BEARING SEIZING UP.

Probably security system. The light blinks to discourage thieves.

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Change the air flow meter

Hope this helps you.

check the crankshaft postioning sensor. this should be located at the rear of the engine where the tranny and engine mount. if its bad it will not let the coil put out spark. I had the same problem with my 940 and that solved my problem. try this, gently pull up on the sensor cable, then try to start the car. sometimes it will start, but if the sensor is completely gone, replace it.

The VOLVO 740 does not have speed sensitive power steering, so is a little harder to turn when going slow.but is very light when doing over 100mph.

Battery or altenator if there is no power. If there is power but acts like no gas, then you could have a clogged fuel filter or faulty throttle position sensor.

don't panic about the marks too much,find top dead centre on cyl no 1,good chance once you have you will find something that does line up between the block/timing case and the pulley. don't forget once it is fitted to ALWAYS wind the engine by hand atleast 2 times to make sure the pistons don't hit valves before starting.