M42club.com - Home of the BMW E30/E36 318i/iS
FAQ / REFERENCE => M42 Reference => Topic started by: brian-pat91-318 on November 19, 2008, 06:12:02 PM
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i recently bought a 1991 318is that had sat for about 2 years and im really excited about owning an e30 they are beautiful cars.the problem is that it turns over but doeasnt start. it gets spark and compression but not fuel. i pulled a line and the fuel pump isnt pumping. i pulled the pump out and tested it on a different positive lead and i can hear it buzzing but when i hook it to the cars fuel pump lead it doesnt work. ive heard it could be the relay but i dont know where at under the hood its located. besides that is there any other reason the car isnt sending it power? im about to drop the tank on saturday to check and see if its grounded correctly, could the grounding be the problem? speaking of which i need to find a way of cleaning out the tank of rust, if theres any way? if not do you guys know what year and model e30's that i can get a tank from? or anywhere i can find one for under $250? stupid budget :P
any help would be greatly appreciated
thanx
-brian-
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fuse or relay ... check them
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fuse or relay ... check them
is the relay the one in the middle of the three relays under the plastic cover against the firewall behind the brake booster? i dont know which fuse or fuse number the fuse is. :( sorry i dont mean to be a pain in the ass
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I have a e36 so it might be in a diffrent spot so you should wait for a e30 guy to give a 100%
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I have a e36 so it might be in a diffrent spot so you should wait for a e30 guy to give a 100%
yea but hey thanx anyway man. i just joined the group and i wanna become really involved. love the cars
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Check Fuse 11 and also the fuel pump relay. I am looking for its location but don't know exactly offhand.
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On the drivers side(american) firewall.
(http://i141.photobucket.com/albums/r73/bogeyman700/fuses001copy.jpg)
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I just know we need a song about teamwork :)
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thanks guys. could the grounding on the fuel pump conncter be bad by any chance?
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anything is possible with the age of the car.
grounding issues are common at times :)
There was a thread with a guy having some issues with a underside of his main fusebox panel regarding soldering on the PCB.
It is not fun to get to.
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anything is possible with the age of the car.
grounding issues are common at times :)
There was a thread with a guy having some issues with a underside of his main fusebox panel regarding soldering on the PCB.
It is not fun to get to.
rather than the grounding of the fusebox could it just be the simple grounding of the fuel pump connctor? or is that not possible. im going to drop the tank and have a look around that area anyways.
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nono, yank the back seat bottom.
You can have a peek right in there to check a few things I believe.
Bearsbmw did a pull on his, he had a post on a thread with a really nice picture of his pull.
He does have a E36, but i think the fuel tank is still in the same spot :)
be safe!
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nono, yank the back seat bottom.
You can have a peek right in there to check a few things I believe.
Bearsbmw did a pull on his, he had a post on a thread with a really nice picture of his pull.
He does have a E36, but i think the fuel tank is still in the same spot :)
be safe!
yea ive already done that but the wires go under the seat metal beyond my reach. im droping the tank because i have to clean/replace it anyways. so i was wondering if the fuel pump connecter is viewable if i take the tank out.
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I would hope so, I had a fuel pump replaced three years ago, there was speak of having to drop the tank. Otherwise, I am not sure to be totally honest :)
Does it buzz when someone is cranking the car over to start it or it is running?
How loud is it?
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Dropping the tank on these cars is quite a process but if your going to replace everything then have at it.Personally ,if it ain't leaking fuel then I'm not removing the tank.There are some write ups on it if your feeling frisky.
good luck
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Dropping the tank on these cars is quite a process but if your going to replace everything then have at it.Personally ,if it ain't leaking fuel then I'm not removing the tank.There are some write ups on it if your feeling frisky.
good luck[/QUOTE
damn that sucks. well i wouldnt drop it if it didnt have rust. besides dropping it is there anyway i can clean it out? lol thats somewhat of a stupid question. well even if i drop the tank do you know of any methods of cleaning it?
and no it doeasnt buzz when the car is on only when i hook it up to a different neg. and pos. lead. which makes me think that there is a problem with the grounding of the connector or something. otherwise idk what it would be besides the relay or fuse.
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i have a bmw e30 318i 1991 i replaced the airflow hose at the weekend after doing so i went to start my car and it just cranked over very strongly but will not fire up please help as i depend on my car as i am disabled Eric
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Now that's a thread back from the dead. BTW, if the original poster ever comes back to check, I'm 99% sure it's your crank position sensor.
maggieEric, you'll have to make sure all the vac hoses are tight. Big vacuum leaks can prevent the engine from starting. Which hose are you talking about, the main hose from the air cleaner to the throttle body?