Question about Volvo 240

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1989 Volvo 240 - new fuel pumps new relay, Main Pump gets 12V for 1 second only. Fuse 6 no power Ignition on. Fuse 4 has Volts Car tries to start but no fuel. Why is voltage cutting off.

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When the ignition is first turned on, the relay pulls in for about 1 second then drops out. When the engine is cranked over, the relay pulls in again and stays in while ever the engine is running. The mechanism for this is circuitry between terminal 31b and the 555 which detects pulses from the ignition unit output and causes the relay to remain operated while the pulses are present.
You have a ignition (electrical problem) more than likely.
fix/check fuse 6 first for bad connections.
hope this helps a little.

Posted on Dec 27, 2018


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Posted on Jan 02, 2017


Ronald Mueller

  • 1263 Answers

SOURCE: 1985 Volvo 240 no fuel no spark

well first the fuel pump relay is bad, that is easily replaced. next you have no spark. the first thing you do is take the cap off the distributerand crank the engine. if it spins that tell syou thyat at least the tang or gear on the shaft of the distributor is ok and not broken. next thing is remove the #1 plug and use a 1/4 drive extension 6" long and turn the crank by hand until the #1 cylinder is top dead center(put the extension in the hole of head where the plug was and you should feel the top of the piston also make sure you can feel the top of the piston with half the extension this way you don't drop it in the cylinder with the piston at TDC(top dead center) the rotor of the distributor should be pointed at the #1 firing position. IF it does not that means your timing is off and you need to retime it by taking off timing cover and either replacing the belt/chain or gears. now if you do not have a distributor and you have a coil pack there could be only 2 things that won't give spark. either a bad coil or your altenater is bad(the battery is responsible for starting not running the vehicle like alot of people assume. the altenator energizes the coil which inturngives spark. hope this helps you please rate this thanks

Posted on Sep 07, 2008


  • 318 Answers


If you have put direct power to the fuel pump and it still wont work, then get an electrical test unit, test light, and ohmmeter, and check to see if there is a break in any of the wires, and that you have got a good ground connection from the ground feed.
After confirming you have good connections, then it will be obvious that the fuel pump needs replacing.

Posted on Jan 29, 2009

John Schreiber

  • 83 Answers

SOURCE: 1989 Volvo 240 GL: Will not start, no spark, no fuel

it is likely either the Crank position sensor, or the ignition module. (module is in the left front fender area behind the turn signal)

Posted on Mar 26, 2009


  • 858 Answers

SOURCE: 2000 elantra no power to fuel pump.

could be a bad earth or [ground]
the power wire ma be brocken or have a loose or dirty connection
you neeed to trace it along its lenght to determine the fault!
so start at the pump & work back
Cheers rob

Posted on Jul 20, 2009


  • 13 Answers

SOURCE: fuel pump- 2002 GMC Sierra

The fuel sending unit only controls the gas guage not the fuel supply to the vehicle. The pump is twelve volts. If you are not getting twelve volts on the PUMP wires check the fuel pump relay and the key circuit to it. If you have to cycle the key three to four times rapidly to get the vehicle to start check the fuel pump pressure at the regulator for manufacturer specs. An injector stuck open will also cause same problems you are describing.

Posted on Jul 30, 2009

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Hello my volvo has no power at all! wondering what i blew fuse etc i don't know

Did you connect the Batteries you jumped with correctly? In Parallel you have 12 volts (correct) in Series you have 24 volts (incorrect). Check your main power fuse ( Big 60 amp or 40Amp) located in plastic box close to the battery on the inner fender well. Be careful jumping dead batteries! Explosion hazard exist, wear eye protection always.

May 10, 2017 | Volvo Cars & Trucks

1 Answer

Whole fuel system

The main fuel pump in a Volvo is really well built and rarely fails (Bosch simply makes great fuel pumps). A good survival trick if you think a main fuel pump might be bad... give it a quick tap with a wrench. For best results, if possible, tap the pump when cranking the engine (while power is going to the pump). If the pump is bad, often the tap will make it come to life and it may stay running until you shut it off. This trick can get you back on the road and get you home in an emergency. If it's a bad fuel pump relay, this will NOT work as there will be no power going to your pump. If this is the case, you might try the below relay bypass "jump" trick to get power going to the pump. TESTING YOUR FUEL PUMP
How to "JUMP" the fuel pump circuit at your Volvo 240 fuse panel:The fastest method to make the main fuel pump run (bypassing the Fuel Pump Relay) is by jumping two circuits at the fuse panel (left side driver's kick panel).

You can make a jumper from a wire with stripped ends or even a straightened paperclip. Jump the circuits on the right side of the fuses for best results
For a 1979-84 240, jump fuse circuit #5 to #7.
For a 1985-93 240, jump fuse circuit #4 to #6.

If the main fuel pump doesn't begin running when jumped (you should definitely hear it humming), you either have a faulty fuel pump or faulty wiring to the pump (bad wiring is really common under an old 240, near the pump). This test of course assumes your battery is good.
If one of the fuses blows during this test, the pump circuit wiring is shorting to ground somewhere between the fuse panel and the pump.


Jan 18, 2012 | 1984 Volvo 240 Series

1 Answer

Fuel pump not working. Just replaced fuel pump relay, all fuses are ok. Both fuel pumps are relatively new.

Check power at the fuel pump , when you put key on ,it should be there for about two seconds (if you are not starting the car) to build up the pressure.
When you cranking engine , power should be constant.
If power not there , go to the relay , check power supply to the relay.If power supply to the relay ok , check signal from ignition switch , if that ok relay is faulty.

Jun 01, 2010 | 1989 Volvo 240

1 Answer

I am not getting fuel in my 1989 volvo .The car turns over but does not start.I've taken the main pump off and do not get any gas when I turn the key on.I put a new intank pump in about two months ago.How...

You can test anything electrical with a voltmeter, which you can purchase at a place like Harbor Freight for $3.
But you can also buy a test light for $1.
Either one has 2 contacts. When you test for current at the fuel pump plug, there will be one that is power and one ground. You attach your test device across them, and see what you get. If they are recessed and you have clips, then you may need to use small nails to complete the circuit. If you need to ensure your test device is working, try it right on the battery.

The most likely problem is not the pump, but the fuel pump relay. It not only requires ignition, but feedback from either the oil switch or alternator, to ensure the engine is running. When you find the relay in the fuse block, it will have a diagram on its side that will show you what sockets to check. You can then also make a jumper to by pass the relay for testing purposes only.

Feb 14, 2010 | 1989 Volvo 240

1 Answer

I have a 1988 volvo 240 gl and my main fuel isnt getting power

There is a fuse up by the Battery alone in a white receptacle with red wires. It may not be blown but is corroded. Thoroughly clean it. This feeds the Fuel pump circuit.If tat is good the white fuel pump relay under the glove box may be bad.

Jan 13, 2010 | 1988 Volvo 240

1 Answer

:::Volvo;1989 240 DL 2.3 liter automatic transmition:::

Fuel pump relay,controls the power to the system,its an small wt box mounted under dash on P/S foot well.

Jun 20, 2009 | 1989 Volvo 240

1 Answer

Cranking problems

New battery, new rotor and new distributor cap and a couple of vacum hoses and the flame trap all replaced and for fairly cheap (execpt the battery).It did the trick.

May 14, 2009 | 1989 Volvo 240

1 Answer

88 volvo 240 starts most of the time but dies when i push gas

Wow. any number of things. Clogged fuel filter? Fuel pump relay. Try getting in the car when it's quiet around you. Turn the key to "on", not start. You should hear the fuel pumps hum for a few seconds and then stop. If you don't hear them, check your fuse box. They are labeled but I believe #6 is usually the main fuel pump fuse. If fuses are good, then it could be your fuel pump relay. These typically develop cracks in the solder and when they warm up, break contact and theengine dies. The relay is accessed by removing the 7 screws that hold your glovebox in. Slide it out as a unit. Remove the glove box bulb if you're going to be at it any great length of time or your battery will die. The relay is a white rectangular box clipped to a metal frame on the left of the now exposed innards. It has like 6-8 pins. Thump it a couple of times and see if the car will start. If it does, replacethe relay. Order online as much cheaper than dealership.
If you do hear the pumps cycle when you turn the key to on, then most likely you have a bad ignition module. Your '88 has LH2.2 so there is no crank sensor to go bad. The ignition module is mounted to the driver's side under hood by air cleaner. Small flat black rectangle w/ silver metal base.
If all this is Greek to you, try a Volvo specific forum like

Apr 21, 2009 | 1988 Volvo 240

4 Answers

1989 Volvo 240 GL: Will not start, no spark, no fuel

it is likely either the Crank position sensor, or the ignition module. (module is in the left front fender area behind the turn signal)

Mar 16, 2009 | 1989 Volvo 240

1 Answer

Main Fuel Pump

Fuses mean short somewhere.Fuse is always live it feeds relay but in tank pump [ fuse#4or#6 i forget anyway visa versa ] is not live until this.Relay clicks once when key tuned to on and once more when key turned to crank engine it is under dash by glove box and loud enough for someone with ear at this spot to hear.In tank pump should not be live until engine starts to crank.

Aug 03, 2008 | 1984 Volvo 240 Series

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