Under the middle of the car was a very very small fuel line and it started leaking due to it became very hard and brittle. That was fixed and everything in its surrounding area was confimed to be in good condition.

 

where are you located? is this a US market car or otherwise?

the wagons were known as 245, the sedans 244's, (and older 2 door coupes were 242). but somewhere along the way, they dropped that last digit, and called them all 240's. DL, GL, GLE are trim levels. GLT is high trim + turbo, which was discontinued on 240's somewhat before your car was made.

if this is a US market car, it almost certainly has a B230F engine, with LHII or 2.2 fuel injection (I think 84 was a split year?). if its a world market car, you might have a different version of the engine (B23E, B230E, B23A, etc). the engine type is usually printed on the paper sticker on the upper front of the valve cover, as seen in this photos of my 740T...



(see where it says B230FT on the bottom of the big square sticker with the bar codes?... thats a turbo version, the turbocharger is under those large pipes just left of the engine)

 

regular US market non-turbo 240's do JUST fine on normal US 'regular' grade pump gas. premium is wasted on them. my turbo, OTOH, will knock on regular so does better on premium.

 

OH WOW Good to know! Very interesting! Im going to look into that first thing in the morning!
I am in California. The previous owner was some kind of professor at Cal State. The car is just beautiful. The gas thing...I used low grade and it was not good but that was befor the filter change. I did use STP and Lucus. In any case I am very glad to hear that info about the gas and oil. Very helpful. The infor withe the engine size etc also great!

 

It has printed B23F NR 5242

 

B23F? interesting. I though the "low friction" modified B230F came out prior to 1984, but that really doesn't matter, these are all the same basic mechanical engine.

I just want to be sure we're all on the same page as there have been times when folks in South Africa, Australia, etc have discussed problems here, and we've accidentally lead them down the wrong paths, based on entirely different engine setups.

anyways, its a California car (I'm in California too, Santa Cruz), so its got to be the US version. Now somewhere in the early 80s, they switched from "CIS" (K-Jet) injection to the LH 2.0 electronic injection, and I'm not sure exactly what year this was. One source I'm looking at says 1983/84 had LH 2.2.

a LH car has wires going to the side of each fuel injector, and all 4 injectors are on a 'common fuel rail' across the top of them. On a CIS car there's no wires to the injectors, and each injector has a separate thin fuel pipe that goes to a fuel distributor under the intake manifold. its important to know what you have, as they each have their own set of procedures for trouble shooting and so forth. I'm not very familiar with CIS (but I think there are other folks here who are) and have mostly worked with the 1987-88 version of "LH 2.2" and the 1989+ version of LH 2.4.

 

1983–1984 B23F — 9.5:1 compression — 111 horsepower (83 kW; 113 PS) — U.S. models
1984 B23F — 10.3:1 compression — 114 horsepower (85 kW; 116 PS) — U.S. models
This is what I found on Wikipedia when I googled Volvo Engines.
By the way,glad you are back Barbra. Lets hope we could solve your problems eventually.

 

Ooooh thank you sooo much! Im taking notes and looking at the possible solutions. I really appricate all the help. I dont want to loose this car! My 16 yr. daghter even loves and it would be such a great starter car for her. Then my hunt for another one for me will begin Im amazed at how many people stop and talk to me about this car and EVERYONE has something positive to say about it. ALL GOOD! Yet most mech are stumped. All they can say is "yah those cars last forever" any way... cant say enough thank you for the help...such a nice change of pace. I will keep you posted!

 

Question: Should I try and clean the mass air flow sensor instead of buying a new one?
I am in Anaheim...any suggestion with part places

 

my experience with cleaning MAF's is not real good, the intermittent problems I was experiencing (on a newer car, this was throwing a 'check engine light' and logging OBD codes related to MAF) came right back. An aftermarket "rebuilt" MAF also started to fail the same way within weeks. we finally replaced it with one from a craigslist part-out, and that seemed to fix it for good.

 

Now the car wont start unless the sensor is diconnected. That must be the problem. (Not discrediting the fact Iprobably need new hoses)The car will run BUT within a light change/a city block it will stall out. If I pull over put it neutral or turn it off (get the rpms up) it will run. What are your thoughts?

 

Fantastic! Thats do able. I know alot of the after market stuff can be good but not always. Sometime only the original works. I know I can find a part out though. So until I can get the part...any suggestions on cleaning it?

 

They sell MAFS cleaner at the auto parts stores... I haven't had good luck with cleaning them. They could be rebuilt, you send them away, they send them right back... A new one is pricey, if still available...

 

I should be able to find one off another volvo. They run about $50 $60. I figured I would just clean this one until then. Temp band-aide kind of thing. New are like $200-300 and havnt heard positive about these aftermarket parts for my car. Thanks for the help...

 

note that a LH 2.0 car uses a different MAF than a LH2.2 or LH2.4. you need an -002 per the table at Engine ECU and these were ONLY used on 1983-1984 US model 240's. The LH2.2 cars use -007 and the LH2.4 cars use -016. the -002 refers to the last three digits of the BOSCH part number, 0280212002

this older MAF is likely pretty rare and hard to find. Volvo DOES still sell refurbished ones, its part number 8251504 (supercedes 1326065), and at TascaParts.com, its $200 plus a $30 'core charge' (that you get refunded when you return your old one. at a Volvo dealer, its more like $275+core. The 'real' Volvo refurbs are likely better quality than the aftermarket refurbs.

ouch, THIS volov parts site says they are 'no longer available', Maf-sensor, exch. NO LONGER AVAILABLE. Fuel system; Fuel system B23F ( (8602803) (1326065)). Volvo # 8251504

IPD and others sell aftermarket ones. at least IPD warranties them, if you go with random ebay vendors, good luck with that.
MAF Mass Air Flow Sensor LH 2.1

 

Very helpful. How do I know which one? LH 2.0, LH2.1, LH2.2, or LH2.4? Most places carry 2.3. That is ALWAYS A QUESTION WHEN INQUIRING ABOUT PARTS. I have no answer.
The fuel pressure relay I believe is for a 2.3. Now I do not believe that was even the issue. Although it did seem to work a smij better.

I wasnt able to take out the unit, but the wire harness that attaches seems to look like the first couple places where you insert are not good. Corrosion like. Maybe weak. There was some silcone still on it but not all. The unit that is attached to the air flow part seems ok (male end). Its just the wire harness that is questionable. When I bought the car I didnt know there wasn't an air filter. After having the car for a few months and did the first plug/oil change I had one put in. So Im sure the entire air flow area is filthy. I got the CRC cleaner and it says to clean the sensor every time you change filter. I did not know this. So its safe to assume that it long over due. Now in puting all that together..no filter and not cleaning the sensor, a messy situation...(no pun intended) Could that have caused some undo "over heating" / "fry"/ "overload"in the wire harness?
Im thinking this is getting bad.
Of course i wont know for sure until that unit with the sensor is removed.
***side note: not crazy about ebay> heard/seen bad results. I have had pretty darn good luck with amazon. Customer service is UNBEATABLE. The enitre buy parts thing I would like to keep it to where I know its credible to some degree.***

 

there's no such thing as LH2.3, at least not on Volvo 'red block' engines.

I thought you said you replaced the wiring harness? any EFI harness should have included the connector and wiring to the MAF.

IPD is a highly reputable seller of Volvo parts, been a Volvo specialist for YEARS. That link is for the right one for your car.

 

Oh....... wow.
The wire harness at the firewall just under the windsheild. I was told that was the wire harness. I didnt know that the was more involved.
The 'wire harness' I was referring to was the bunch of wires that connect to the mass air flow unit. So that should have been changed also?

 

Let me clearify. The wire harness under the windsheild was replace with new ones.

 

Ok..so mine should be a LH2.2.
Sorry for all the questions and confusion.