Question about 1990 Volvo 740

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GAS HEATER I want to know does volve 740 has device that heats the gas before it goes combution?

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  • khazihjhussa Jun 21, 2008

    You are not answering my problem but try to sell me something instead! hah.

  • Anonymous Jul 21, 2008

    Dear, it is true that volvo 740 yr 1989 dont have oxygen sensor? and it used a kind of injector that not the type fully electronic ?


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No, it does not. No car heats gas, some diesels have or used to have a 'glow plug' to get the diesel started but gas cars do not.

Posted on Jul 21, 2008

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My friend has a 1988 Volve 740 GLE that has problems starting from time to time. She had someone change the fuel pump but it still does the same thing. She now says when the car is running and she turns on...

That sounds like an ECU problem.
Better bring that Volvo to the nearest dealer and have them scan your computer for any anomalies in the system.
Hope FixYa solved that problem.

Aug 23, 2011 | 1990 Volvo 740

1 Answer

My 91 volvo 740 won't start

Could be that there is a clog at the tank-there is a screen there- can be accessed through access panel behind rear seat- also try taking off fuel line at engine and starting engine--if there is fuel present then I would rule out the tank screen problem. Good luck--let me know if that helps. C

Jul 11, 2009 | 1991 Volvo 740

1 Answer

How and where do I change the oil pressure swich on 2000 S80 Volv

have you checked the level of the oil ?.... it may be something an oil change will not fix by the way

Mar 05, 2009 | 2000 Volvo S80

2 Answers

No heat when temp goes below freezing, gas leak when tank is full

The reason that the shops keep insisting on a low tank is because gasoline weighs about 7.5 lbs per gallon. It's too heavy to remove full. Aside from that, most shops just don't have a place to temporarily store that much fuel! You almost certainly have a leak on the top of the tank, either from the sending unit seal, a hose or the tank itself, which is why it only leaks when full. The location can only be determined after the tank is taken down and inspected. Though most warrantys cover 90days from when work is done, any reputable shop will usually correct this type of problem for free, Unless there was a problem they saw, told you about and you refused to allow them to correct.
With regards to your heating problem: From your post, it sounds like the blower motor may have failed.(going over a bump would free it up) However, the motor itself would have been noisy before it got this bad. I don't see a corrolation between ambient temp and that though. Is the blower running when this happens? Also, If you don't have a proper antifreeze mixture, the heater core could be freezing up, but this would generally correct itself as the vehicle warms up. With limited info, I would not rule anything out yet!
Good lucki

Jan 09, 2009 | 1996 Chevrolet Blazer

1 Answer

No heat only blows cold air

Not shure what heating coil you are talking about but you could have a bad heater control valve,a plugged up heater core,or you could be very low on water.

Dec 25, 2008 | 1988 Volvo 740

1 Answer

Volvo turbo wagon runs HOT!


Jul 20, 2008 | 1986 Volvo 740

2 Answers

85 740 GLE Non-turbo stalls when put in gear or push on accelerator

Its really sounds like the throttle switch, chack him.

Jun 17, 2008 | 1985 Volvo 740

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