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#1
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Mercury Marquis fuel problem???
Hello, I have a 1983 Grand Marquis. Yesterday, it ran out of gas.
After getting gas in it, we still have had problems starting it. I have changed the fuel filter inside of the carb today. I put some gas inside of the butterfly on the carb and it almost starts. It will turn over fine, but just won't catch. I know there is spark, cuz I have had a little fire. lol Any ideas???? Is there another fuel filter? |
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#3
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Mercury Marquis fuel problem???
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#4
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Mercury Marquis fuel problem???
Lawrence Glickman wrote: > On 10 Jun 2006 13:14:40 -0700, wrote: > > > Hello, I have a 1983 Grand Marquis. Yesterday, it ran out of gas. > >After getting gas in it, we still have had problems starting it. I have > >changed the fuel filter inside of the carb today. I put some gas inside > >of the butterfly on the carb and it almost starts. It will turn over > >fine, but just won't catch. I know there is spark, cuz I have had a > >little fire. lol Any ideas???? Is there another fuel filter? > > Is there another fuel pump? > What is your fuel pressure going to the engine? I don't know how exactly to check the pressure, but it seems to not be pumping at all.... How do I know if my car has c.f.i. or not???? When I press down the gas, two little doors open beside the carb. __________________________ | | | | | | | /|\ | /|\ | | | | | | | | | | | | | | | | |____________|_____________| The things in the middle are arrows.... My digital cam is messed up or I would just take a pic. =\ |
#5
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Mercury Marquis fuel problem???
On 11 Jun 2006 07:34:46 -0700, wrote:
> >Lawrence Glickman wrote: >> On 10 Jun 2006 13:14:40 -0700, wrote: >> >> > Hello, I have a 1983 Grand Marquis. Yesterday, it ran out of gas. >> >After getting gas in it, we still have had problems starting it. I have >> >changed the fuel filter inside of the carb today. I put some gas inside >> >of the butterfly on the carb and it almost starts. It will turn over >> >fine, but just won't catch. I know there is spark, cuz I have had a >> >little fire. lol Any ideas???? Is there another fuel filter? >> >> Is there another fuel pump? >> What is your fuel pressure going to the engine? > > ================================================== =============== > I don't know how exactly to check the pressure, but it seems to not >be pumping at all.... What I think... >How do I know if my car has c.f.i. or not???? I can't see the engine, but you have either a 5.0L 302 cubic inch displacement V8 (F) engine in that or a 5.8 liter 351 cubic inch displacement V8 (G) engine in either case > When I press down the gas, two little doors open beside the carb. > >__________________________ >| | | >| | | >| /|\ | /|\ | >| | | | | >| | | | | >| | | | | >|____________|_____________| > >The things in the middle are arrows.... My digital cam is messed up or >I would just take a pic. =\ you have a fuel supply line going to the carburetor. I don't know what that looks like, since I don't have a book for that model vehicle, but you definetely have a fuel supply line going to the carburetor. There may be an inline fuel filter on it. Somewhere between the gas tank and the carb there most certainly is a fuel filter. You can disconnect the fuel line going to the filter, and attach the fuel line from the fuel tank to a fuel pressure gauge instead of the fuel filter, and turn the ignition key to ON ( without going all the way to START ). That should turn on the fuel pump...and you should see the pressure come up on the gauge to something around 45 pounds per square inch pressure, plus or minus. Somewhere in the fuel line there should be a piece of rubber fuel line you can tap into with a gauge. If the gauge stays dead and doesn't move...the pump is electrically dead, but not necessarily defective. There are some things that can turn it OFF, such as the Fuel Shutoff Solenoid. Anyhow, finding out you do or don't have fuel line pressure is Paramount to continuing with the diagnosis. We need to know if this is a fuel supply problem. If it is, it could be caused by anything from a bad electrical connection to a blown fuse, to a defective relay, to an activated fuel shutoff solenoid. Or maybe even the fuel pump is bad. You can find out about that by finding the wires that go to the fuel pump and seeing if you get voltage there when your turn your iginition switch to ON, but not START. For a few seconds...the fuel pump should turn on when you turn the key to ON ( but not Start ). You should get voltage to the pump and pressure. If the voltage is not there...that's one problem. If the voltage IS there, but you're not getting pressure, that is a different problem. It sounds more difficult to test than it really is. All of this shouldn't take more than 30 minutes to figure out if you have a Volt Meter and a fuel pressure gauge. In fact you don't really need the fuel pressure gauge. You can just aim the detached fuel line from the fuel tank into a bucket to catch the gasoline...and watch to see if it gets gas into it when you turn the ignition switch to ON, but not START. If you do get fuel pumped into the bucket, that is when we want to measure the fuel pressure. If it is too low, your engine won't work correctly from fuel starvation. So you decide. Spend the $ and get a Digital Volt Meter and a fuel pressure gauge? Or bring it to somebody else, because if in fact the fuel pump is dead, do you have the tools/knowledge to swap it out with a new one? It is not a trivial task. As always, No Smoking and wear a full face shield or protective eye goggles when working on a pressurized fuel system. Now you are in rec.autos.TECH, which isn't the same group as rec.autos.dope, except for a few unmentioned members/posters. So you are going to have to decide if you can get the information, tools, and have the savy to do it yourself. If you don't, nothing to be ashamed of, but you'll pay for that when you get the bill from the mechanic. Lg |
#6
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Mercury Marquis fuel problem???
I talked to a couple of mechanics at work and they say that I have a
mechanical pump. I have checked the line and it is getting gas, but not enough to do **** with. I ordered a new fuel pump from the parts store which will be here tomorrow afternoon. I am going to attempt to get this done tomorrow when I get home from work. In the past two years, I have gone from being completely stupid when it comes to cars, to really starting to learn something. I wanna thank everyone for their help. I will let you know how to goes too.... ~Shane |
#7
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Mercury Marquis fuel problem???
http://tinyurl.com/rof7l This shows some about mech. pumps. -- Knifeblade_03 ------------------------------------------------------------------------ Knifeblade_03's Profile: http://www.automotiveforums.com/vbul...?userid=262826 View this thread: http://www.automotiveforums.com/vbul...d.php?t=577378 http://www.automotiveforums.com |
#8
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NEW PROBLEM!!
Okay, we got the fuel pump in. Now it will start, but when I take my
foot off the gas, it dies. We have followed the fuel up into carb so I know the pump is working now. Any ideas what is up now???? |
#9
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Fixed....
It starts now!!! WHOOO HOOO!!!!! My smog pump locked up..... Is it
needed?? wrote: > Okay, we got the fuel pump in. Now it will start, but when I take my > foot off the gas, it dies. > We have followed the fuel up into carb so I know the pump is working > now. Any ideas what is up now???? |
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