Need help!!! Searched for hours!
03-15-09, 11:29 AM
#1
Need help!!! Searched for hours!
Well i've been trying my hardest to get my 1991 S5 to run. I've searched endlessly on this forum and i can't find what im looking for. Well let me tell you that the car has been sitting for 4 years and some change and i know that things would seize up. The car ran before pefectly fine because i was going to buy this car that long ago but someone broke into it, stole important interior stuff ,and was left sitting for that long. So the owner gave up on selling it and just gave me the car for free!( the car is in pretty damn good condition in its current state! which is what i'm told by other seven guys who've seen it). I cleaned most of the fuel system (including the gas tank which took long as hell to do) I have gotten the car started with starter fluid, ran till the fuild ran out but that was before i had my injectors professionally clean. Also i replaced the fuel pump to a walbro 255 unit. I don't know if i need a fuel pressure regulator to see if i have fuel pressure. i've also tried putting oil in the leading spark plug whole? (don't know if this helps). I would love your help so any advice i will be most greatful! this was going to be my first car in high school but that unfortunate event happened. PLEASE WOULD LOVE TO GET HER RUNNING TODAY!!!!!
03-15-09, 12:47 PM
#4
does it turn over fine? if it been sitting that long, squirt a little of auto tranny fluid into each rotor through the spark plug hole. this adds to compression for an easier start. then get some starting fluid and spray it into the throttle body as you crank. if this does not start it. check for spark. a weak battery also will flood the car.
there is a few ways to de-flood the car.
1. remove the fuel pump relay under the dash bolted to the steering column (if in the original place). has a yellow base and black top. then crank.
2. remove fuel feed line, clamp closed or plug. then crank. ( this will also let you know if you have fuel pressure if removing the plug or clamp from the line and if gas flows, you have pressure. but its better to test on the return side so you know fuel passed all the way though the rails)
theres many more ways, but im sure you get the idea. stop the fuel. and crank it.
after this to clean the chamber out. take out the trailing plugs and crank. it will shoot out the gunk form the motor. put brand spanking new plugs. if she still dosnt start. you have deeper problems.
if it does start, she will be smoking a lot from the auto tranny fluid. this also helps to clean off carbon and kinda repair oil seals in the motor. many people do this after a certain milage anyway to clean up the motor. just let her high idle (1500-2000) for atleast 15 minutes with a hit of the throttle every now and again. a drive with a few full throttle runs to 8k will clean out the smoke also.
there is a few ways to de-flood the car.
1. remove the fuel pump relay under the dash bolted to the steering column (if in the original place). has a yellow base and black top. then crank.
2. remove fuel feed line, clamp closed or plug. then crank. ( this will also let you know if you have fuel pressure if removing the plug or clamp from the line and if gas flows, you have pressure. but its better to test on the return side so you know fuel passed all the way though the rails)
theres many more ways, but im sure you get the idea. stop the fuel. and crank it.
after this to clean the chamber out. take out the trailing plugs and crank. it will shoot out the gunk form the motor. put brand spanking new plugs. if she still dosnt start. you have deeper problems.
if it does start, she will be smoking a lot from the auto tranny fluid. this also helps to clean off carbon and kinda repair oil seals in the motor. many people do this after a certain milage anyway to clean up the motor. just let her high idle (1500-2000) for atleast 15 minutes with a hit of the throttle every now and again. a drive with a few full throttle runs to 8k will clean out the smoke also.
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03-15-09, 07:02 PM
#8
does it turn over fine? if it been sitting that long, squirt a little of auto tranny fluid into each rotor through the spark plug hole. this adds to compression for an easier start. then get some starting fluid and spray it into the throttle body as you crank. if this does not start it. check for spark. a weak battery also will flood the car.
there is a few ways to de-flood the car.
1. remove the fuel pump relay under the dash bolted to the steering column (if in the original place). has a yellow base and black top. then crank.
2. remove fuel feed line, clamp closed or plug. then crank. ( this will also let you know if you have fuel pressure if removing the plug or clamp from the line and if gas flows, you have pressure. but its better to test on the return side so you know fuel passed all the way though the rails)
theres many more ways, but im sure you get the idea. stop the fuel. and crank it.
after this to clean the chamber out. take out the trailing plugs and crank. it will shoot out the gunk form the motor. put brand spanking new plugs. if she still dosnt start. you have deeper problems.
if it does start, she will be smoking a lot from the auto tranny fluid. this also helps to clean off carbon and kinda repair oil seals in the motor. many people do this after a certain milage anyway to clean up the motor. just let her high idle (1500-2000) for atleast 15 minutes with a hit of the throttle every now and again. a drive with a few full throttle runs to 8k will clean out the smoke also.
there is a few ways to de-flood the car.
1. remove the fuel pump relay under the dash bolted to the steering column (if in the original place). has a yellow base and black top. then crank.
2. remove fuel feed line, clamp closed or plug. then crank. ( this will also let you know if you have fuel pressure if removing the plug or clamp from the line and if gas flows, you have pressure. but its better to test on the return side so you know fuel passed all the way though the rails)
theres many more ways, but im sure you get the idea. stop the fuel. and crank it.
after this to clean the chamber out. take out the trailing plugs and crank. it will shoot out the gunk form the motor. put brand spanking new plugs. if she still dosnt start. you have deeper problems.
if it does start, she will be smoking a lot from the auto tranny fluid. this also helps to clean off carbon and kinda repair oil seals in the motor. many people do this after a certain milage anyway to clean up the motor. just let her high idle (1500-2000) for atleast 15 minutes with a hit of the throttle every now and again. a drive with a few full throttle runs to 8k will clean out the smoke also.
Link to Aaroncake's web page
click for info to get started on this
click for info to get started on this
thank you
Thank you all for posting i know you gusy are probably annoyed by these questions already!
03-16-09, 12:58 AM
#9
Passing life by
The NA wont run or will run at best horridly and will flood very often with that pump without an after market FPR setup. It sounds like the car is flooded and guess why?
03-16-09, 03:45 PM
#15
Passing life by
no ATF is not best way nor is sea foam use MMO. The gas pedal on S5 cars only shuts the fuel off during cranking or pull the EGI-INJ fuse in the bay. If its that flooded you will need to crank it for ab it with the plugs out anyways. There is some custom work involved or new parts required to address the factory FPR and fuel delivery options to work with the after market FPR so it would be easiest for now to just use a OEM pump. Be careful of places like O'reilys they use the same part number to address FC,FD's, and supras fuel pumps.
03-16-09, 09:34 PM
#17
i just changed that right now and i had one of my buddies use a mechanics stethoscope to see if the injectors where operating and he didn't hear them!?! so what else could i be missing since damn near the entire fuel system is either new or cleaned out!!!
03-17-09, 12:52 AM
#19
Passing life by
03-17-09, 11:48 AM
#21
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I read the part where you say it starts if starter fluid is used. So it's a fuel delivery problem.
So since it's a non turbo, jumper the yellow two socket fuel pump check connector. Key to ON. The pump should be heard running continuosly. Good.
Now remove the jumper wire from the connector and remove the Return Line on the left side of the engine. It's the one that does not come from the fuel filter (filter is below the brake booster area).
Now with the key ON, go jumper that yellow two socket fuel pump check connector momentarily. Fuel should flow out the return hard line. IF not, leave the jumper in a bit longer and see if it flows not. Not flowing??? Leave the jumper in for ten or fifteen seconds. No fuel? Lines are plumbed wrong or clogged or?????
So since it's a non turbo, jumper the yellow two socket fuel pump check connector. Key to ON. The pump should be heard running continuosly. Good.
Now remove the jumper wire from the connector and remove the Return Line on the left side of the engine. It's the one that does not come from the fuel filter (filter is below the brake booster area).
Now with the key ON, go jumper that yellow two socket fuel pump check connector momentarily. Fuel should flow out the return hard line. IF not, leave the jumper in a bit longer and see if it flows not. Not flowing??? Leave the jumper in for ten or fifteen seconds. No fuel? Lines are plumbed wrong or clogged or?????
03-17-09, 12:59 PM
#22
does it turn over fine? if it been sitting that long, squirt a little of auto tranny fluid into each rotor through the spark plug hole. this adds to compression for an easier start. then get some starting fluid and spray it into the throttle body as you crank. if this does not start it. check for spark. a weak battery also will flood the car.
there is a few ways to de-flood the car.
1. remove the fuel pump relay under the dash bolted to the steering column (if in the original place). has a yellow base and black top. then crank.
2. remove fuel feed line, clamp closed or plug. then crank. ( this will also let you know if you have fuel pressure if removing the plug or clamp from the line and if gas flows, you have pressure. but its better to test on the return side so you know fuel passed all the way though the rails)
theres many more ways, but im sure you get the idea. stop the fuel. and crank it.
after this to clean the chamber out. take out the trailing plugs and crank. it will shoot out the gunk form the motor. put brand spanking new plugs. if she still dosnt start. you have deeper problems.
if it does start, she will be smoking a lot from the auto tranny fluid. this also helps to clean off carbon and kinda repair oil seals in the motor. many people do this after a certain milage anyway to clean up the motor. just let her high idle (1500-2000) for atleast 15 minutes with a hit of the throttle every now and again. a drive with a few full throttle runs to 8k will clean out the smoke also.
there is a few ways to de-flood the car.
1. remove the fuel pump relay under the dash bolted to the steering column (if in the original place). has a yellow base and black top. then crank.
2. remove fuel feed line, clamp closed or plug. then crank. ( this will also let you know if you have fuel pressure if removing the plug or clamp from the line and if gas flows, you have pressure. but its better to test on the return side so you know fuel passed all the way though the rails)
theres many more ways, but im sure you get the idea. stop the fuel. and crank it.
after this to clean the chamber out. take out the trailing plugs and crank. it will shoot out the gunk form the motor. put brand spanking new plugs. if she still dosnt start. you have deeper problems.
if it does start, she will be smoking a lot from the auto tranny fluid. this also helps to clean off carbon and kinda repair oil seals in the motor. many people do this after a certain milage anyway to clean up the motor. just let her high idle (1500-2000) for atleast 15 minutes with a hit of the throttle every now and again. a drive with a few full throttle runs to 8k will clean out the smoke also.
To unflood an S5, all you need to do is floor the gas pedal. Simple as that.
03-17-09, 01:28 PM
#23
dont use any thing besides regular motor oil. you use ATF or MMO when you know the engine is trash and want to get it runing on its last legs of its life.
do what hailers suggested, then if everything works,
yank the injectors out and sent them off to witchhunter performance.
if that still doesnt work, get a NA fuel pump. ill give you my working s5 NA unit for free. just pay shipping.
do what hailers suggested, then if everything works,
yank the injectors out and sent them off to witchhunter performance.
if that still doesnt work, get a NA fuel pump. ill give you my working s5 NA unit for free. just pay shipping.
03-17-09, 01:50 PM
#24
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how does ATF ruin cast iron? the seals are iron. ATF just makes HUGE clouds of smoke.
