I need help, the rex wont start. I had it running aobut 2 months ago. but only real quik then i shut it off so it flooded. a couple weeks later when i got a chance i unflooded it and tried to start it. It would spin and catch but not run so i decided it was out of gas. Seince then i have added about 6 gallons of gas and it will spin and won't even catch. it has spark. How can i tell if it has gas or even if the fuel pump is working. I can't hear anything from the pump when i turn the car to the on position. i have removed the pump hatch in the back of the car. and the top of the pump is so corroded it looks like the screws are rivets. is there a crank sensor or something that triggers the fuel pump to come on? I really could use some help. I need to get the car back on the road. any help would be great. thanks.
Dom~
p.s. when i pull the leading plugs they are not wet, even if i pump the gas while turning the car over. the trailing plugs commonly have a little bit of oil on them. Oh yea my car is an 86 NA

 

there's a clip that isn't pluged into anything. you can use jumper wire or a paper clip to stick into that and turn the key to the "on" position. leave it there and then after a while turn the key off and take out the wire...

that's how you prime the fuel system. if that doesn't work then i dunno what will. clogged filter? also check your voltage! not enough voltage(12v), not enough fuel.

edit, is your fuel pump plug connected?

 

Your fuel pump starts when the key is turned to the "start" position. Once the key is returned to the "on" position, the ecu looks for a signal from the AFM telling it that the car is running. If that signal is not present, the pump is automatically shut back down.

The aforementioned check connector, when jumpered, will allow the fuel pump to run when the key is in the "on" position, and the car is not running.

What you may want to do is take the line coming from the fuel filter off, and BRIEFLY turn the key to "on" with the jumper installed. If the pump is working, you will know about it, ASAP.

 

^^this will also let you be able to hear if the fuel pump is working or not

 

ok i jumped the fuel pump thing and it's working. new problem. It will now turn over and it will catch. it will sound like it's going to start but it won't stay running kinda like when a car is out of gas almost. although i have put aabout 5-6 gallons of gas in it. What could this problem be. Please guys i need help asap. i live in an apartment complex and it's gonna snow up here in maine tonight so to plow the lot i have to move my car. i really don't want to push the thing across the lot. and i need to get this thing on the road! any help would be great. thanks guys.

 

Could be a vac leak man, is it a 5-speed? Have you tried push starting it? Will it run at all, even for like 2 or 3 seconds?

 

Now un-jumper the fuel pump, and get prepared to complex unflood.. Have you tried to floor the pedal while cranking?

 

it will catch and start to run almost. but wont stay running. almost like it's running off the starter. would a vac leak cause it not to start at all? when i did the fuel pump jump thing, i could hear the fuel pump going and then under the hood i could hear what might have beena vac leak or something but i really don't know. it was a small hissing noise. but would having the pump on be enough pressure to notice a vac leak? i dunno. any more guys. i know someone out there has had a problem like this before. this is one of the biggest forums in the world someone must know. thanks guys

 

I heard somewhere that holding it to the floor on the s4 will just cause it to flood, something about flooring it not cutting the fuel pump or something. If it was flooded would it even catch?

 

our cars just LOVE cold weather, ehhh? have you checked the inlet filter on the fuel pump? letting the car sit for a while, it could've varnished up; in that case you'll have enough pressure/ volume in the lines to get 'er started, but not to keep 'er running...

 

if its flooded bad it wont catch at all. a really bad vac leak my keep it from starting, but i dont think that is it. i agree with j-rat, you need to unflood it. but on a S4 flooring it doesnt cut fuel. you need to pop out the egi fuse under the hood and crank it for 5-10 second bursts give it maybe 4 tries then put the fuse in and try to start it. if it doesnt work try it again. you may have to take the lower spark plugs out while you have the egi fuse out to blow some of the fuel out of the chambers

 

have you tried push starting it??

 

if he was flooded, it wouldn't start- didn't he say it starts but doesn't stay running? also, my S4 cuts fuel when the peddle is floored, why wouldn't his? that's how you finally get it started after a de-flooding procedure- floor the thing and keep it cranking till it finally lights off...

 

i havn't tried push starting it yet. it ahs been snowing for about an hour so the lot is a bit slick and i have lack of people to help push right now. it will be a while before i can try that due to the snow. hopfully tomorrow morning i will go out there unflood her again and then try and start. hopefully it will. it's a pain in the *** though cause i have to hook her up to cable now because i've been cranking so much with now start. Oh well. Is there anything else it could be? I need as much info as possible. I have done some minor unflooding today. just removed the fuses and turned ehr over for about 10 seconds. and it would catch after that but not run. Damn i need to get this thing going. thanks for the help guys. anything else would be great.

 

It doesn's nessasarily start. but it "fires" It will turn over and catch but not go all the way to running. just a little burst then nothing. then keep cranking for a bit and she'll do the same. Any more? thanks

 

get a syringe and shoot a little engine oil into each rotor housing with a spark plug out, it seems to help build up compression after a flood on mine

 

S4s dont normally cut fuel when floored... The reason why I told him to do it, is in a last ditch effort, it sometimes works..

 

so in the morning i should get out there, unflood it. and when trying to start it i should do what? Floor it, feather it, don't touch it at all. Thanks for the help guys. i really hope it starts. if not i better at least have a snow day. . . lol

 

Also, check your intake path and make sure its intact! ALL THE WAY!

 

ok try this " under the dash there is a relay which is attached to the steering column, unplug it and crank her over, if its a fuel flood problem she will start for a good 2-3 sec and shut of. than put the relay back in and start her normally!" if thats not the problem than it might not be fuel

is your mass air connected properly and other sensors?

 

It was running a couple months ago, but then flooded and ran out of gas. i put gas in it and primed the system. i havn't touched any of the sensors. and it must be getting fuel becuase it does fire and it wouldn't before. and also before after turnign her over the plugs would be completly dry and it wouldn't catch at all. now that i jumped the fuel pump it will catch and i pulled the plugs a few different times and they were a bit wet but not too bad. Intake is fully intact, i havn't taken anything off of the car. and i will repeat, the car will crank and then fire or "catch" but won't run. as i've said before it kind of sounds like it's running off of the starter for a few seconds then will stop and after cranking will do the same thing. thanks guys. oh and the more teh marrier. i need as much help as possible. :>)

 

umm well mine wasnt starting in the cold and it was the water thermo sensor, i dont know how cold it was when you started it last but im thinking it was pprobably cold so it probably isnt

 

as said above try disconnecting the relay under the dash now and starting it and than connect the relay back in and crak her over again

 

you know what, J-Rat, now that I think about it, it probably doesn't cut fuel...however, flooring it and keeping it floored while cranking always seems to work better for me...

 

dom c email me I will send you a photo and a summary on how to unflood your car. I cant figure out how to attach a picture on here.

relkceb@rochester.rr.com