Fuel issuse fuel pump fuel injectors? Urgent.

melizzuh · Post by **melizzuh** » 19 Apr 2012, 14:00

I drive a Volvo 760, have had it for about 8 months have only driven about three it was in the shop for about6 months, so I guess I have owned it for longer than 8 months but ANYWAYS haha. Let me give you a brief history of my run with this car...

I bought it in Houston from a Nigrerian man who said he was a 'mechanic' Ha. I bought this car because a Lexus totalled my Nissan Sentra, and it seemed to be the most decent of the cars available in my price range, most other cars I looked at had cracked head/gaskets, or well over 200k miles.. So I bought it.

It ran well, until we moved several hours away, four hours into the drive, the coolant resivour busted, sucked in the cap and some pieces, the pressure of loss of, busted my upper and lower radiator hose, had to keep putting water in it every 5 minutes, I eventually gave up trying, sat in the car with my baby for 3 hours waiting to get towed the rest of the three hour drive.. fun.

So when I arrived at my destination, I replaced my coolant resivour, heat valve, upper and lower, radiator hoses. The car started right up, but had blue smoke out the exhaust... It was the head gasket..

So, I take it to the local mechanic who mostly works on trucks and chevys, but he said he could do it, so he did...

I bought all the parts so I just had to pay labor, he replaced all the gaskets, had the head re-machined, though other problems 'magically' appeard, like the distributor, which I saw the chords looked like they had been torn from when they removed the cam, so I replaced that anyway, had the turbo rebuilt and all its seals and barrings replaced, got a new timing belt and tensioner, and I get it back a few months later..

only now he says it has a fuel injection problem, it would start up only after it had been of for awhile, then it got a little better, i just had to hold the ignition till the rpms went up to about 2k then the motor would run and hold alright...

Today however going to a 2nd job interview, (would be just my luck), pulling out of my apartments the car just stalled. I kept trying to start it, and someone pulled over to help, he pointed out that gas was pouring out the bottom of my car. Him and another gentleman helpped me push the car into a nearby parking lot. I jacked it up and looked under near the fuel pump, I thought it was one of the hoses, loosened the clamps, examined it just to find it wasnt the problem, then tugged down another worn hose coming from the bottom from my gas tank with the live and ground wire for the in tank fuel pump im assuming, and gas poured down from there onto my hand...

What is the problem? Is it my tank? Or my in tank fuel pump? For a woman, I know my fair share about cars, having owned all old and abused cars before this.. I am hoping its something I can fix for under 112$ 'cause that is ALL I have to my name.. I am just wondering if the hose with the pink/orange and black wire is supposed to go to something or if it just protects the wires and how or why the gas is pouring out of there and not getting to the motor? I cant seem to find anything anywhere on the problem, and obviously cant afford to tow it to my mechanic, AND fix it.

Please help!!

melizzuh · Post by **melizzuh** » 19 Apr 2012, 18:27

Just some images to share. If you look at the bottom you can see the hose that is missing going over the motor, you can see the one pipe is not missing, and that the windshield fluid line is not cut, there is also a bolt in one of my hoses above the motor, and Idk what it goes to. :[

melizzuh · Post by **melizzuh** » 19 Apr 2012, 18:31

I am suprised my Volvo ran at all, I obviously got screwed over, but I honestly dont know where to begin. I need more Volvo knowledge! Please share what ever advice you can give me, I obviously have a lot more on my hands than a fuel leak... The mechanic who worked on it still wants another 800 dollars out of me, but truth is my car was better off with a cracked head gasket than it is now, at least it had all its hoses and shit was cut up, plugged up, and there werent sun flower seeds in the bottom, and other ghetto what nots. Ugh.

Post by **matthew1** » 19 Apr 2012, 20:39

Bump. I'm sorry I can't help. I would if I could. Don't know anything about RWD Volvos. Bill?

melizzuh · Post by **melizzuh** » 19 Apr 2012, 22:10

Thank you anyway though! Its great you have these forums, I guess I just have to be more patient. :]

Post by **billofdurham** » 20 Apr 2012, 12:34

melizzuh, welcome to Matthew's Volvo Site.

Matt, thanks for throwing me into the deep end which is probably shark infested.

The pink and black wires are from the in-tank pump and, no doubt, the hose is from the same place. You don't say whether the car is a saloon (sedan for US members) or estate (wagon). In either case the in-tank fuel pump can be accessed through an inspection hole in the floor of the luggage area. On the saloon the tank is mounted centrally under the floor and the inspection hole is in the middle. On the estate the tank is mounted at the side and the inspection hole is, of course, at the side. First course of action is to get access to the in-tank pump and get the wires and pipe reconnected. I feel that this could be a cause of the poor starting/running. The fuel system does need two pumps. The in-tank pump is a priming pump for the main pump. If the in-tank pump is not working the main pump will struggle to pull fuel through, especially if the fuel level is low. If you can fix this yourself, and I am sure you can, it will cost a lot less than $112. The only drawback would be if the wires have pulled the tags off the pump rather than just pulling the connectors off the tags.

Looking at the pictures, which should be in the Black Museum, you can do a temporary repair on the silver coloured hose by pushing the smaller hose into the bigger one and wrapping it with duct tape.

The hose from the turbo needs to be replaced. The black mess on it seems to be some sort of sealer which is not up to the job of keeping oil in the pipe and never will do. Who did the turbo swap? That should have been changed at the same time. I like the shiny turbo, it contrasts nicely with the green shoe laces.

The missing hose and the hose with the bolt in the end have me scratching my head at the moment but I still have several books to go through. The most important job for now is that fuel hose/wires.

Bill.

melizzuh · Post by **melizzuh** » 20 Apr 2012, 13:43

Than you so much Bill of Durham, it is a Sedan, so I am guessing I would have to remove the floor in the trunk to get to the top of the gas tank? I know I have to disconnect the battery too for safety reasons, can you guys give me any other pointers like tools I might need, what to do and not to do? I dont want to feel like I am going into this blind.

And what I think caused my fuel pump to break is that exposed hose, which I think has my motor exposed too, if you see in the picture of under my hood before I took my car to that guy who claims to be a mechanic.. :[ you see a hose going over the top of the motor from the left to the right to the fuel injection side, from my turbo,

This Edward fellow on this page www.justanswer.com/volvo/3h1n2-89-volvo-760-turbo-problem-fuel-pumps-breaking.html suggested the person with fuel pump woes to check his/her turbo hoses, and that a hole in the hose could cause and put significant stress on the fuel pumps, so I am thinking that my fuel pump may not even be busted now if I had that hose, so its a pain a bunch of things I got to fix. :[ That werent broken before, I feel bad for my Volvo now though I was mad at it for repeatidly letting me down, but now I see people just did terrible jobs at taking care of and fixing it. :/

Post by **billofdurham** » 20 Apr 2012, 15:24

To disconnect the battery it is only necessary to remove the negative lead. Make sure you have the radio code if you need one.

To gain access to the in-tank pump lift the carpet in the luggage area. Just in front of the spare wheel well you will see the inspection hatch. The plate covering it is square and fastened down with four screws. Remove the screws and lift the plate. You should now be able to see the top of the in-tank pump/sender unit. If the tags are there for the wires put them back on. Do the same for the hose, but, if the hose is in any way suspect, replace it.
If you are able to put the wires and hose back have someone switch on the ignition, not crank the engine, whilst you listen for the pump kicking in. It will be momentary as, once it primes the system, it will stop until the engine requires fuel.

The hoses do need replacing but the big silver one can be fixed temporarily as I said in my previous post.

Bill.

melizzuh · Post by **melizzuh** » 21 Apr 2012, 13:46

I went to a pick a part and pulled a fuel pump out of a 740, though it seems like the gas is leaking from under the motor where the inline pump connects to the fuel filter, Is there a certain kind of hose nedded for there or do I just get a small hose of the same size? I am wondering if it is supposed to be the Fuel inlet hose, which looks kind of like a short springy hose, I guess is how I would describe it? And the hose I am missing goes from the turbo over the motor onto the fuel injection side, I dont think the turbo is actually getting to the motor, and as a result throwing off my air/fuel mixture, which is causing my hard start problems, and the rpms to run high when driving, I thought before it was the timing.

What do you guys think?