Weirdest problem EVER!!

[tsilover]

I have a problem with my car. Last night when i tried to start the car, it wouldn't stay running, it would run 4 like 5 seconds real rough and then it would die. This morning i tried to start it, and it ran first time. I was like but i drove it today and all was well. Tonight i went to start and it did the same thing.

Some other things that has happened. On friday i was picking up someone for work and my car died in front of her house (morning). It started like 15 minutes later. It drove fine and then coming home, it broke down. Luckily it started after like 15 minutes and drove fine home.

I just had a new motor installed with an act 2600, when the car does start it clicks when the clutch pedal is pressed.

I wrote this as i thought of it. I was thinking some sort of fluid is reacting to the drop in temp and humidity at night. Any help would be appreciated. Thanks guys.

 

[Lunch_Box]

Maybe you have a grounding problem that is draining your battery.

 

[autronicDSM]

When battery drains, it's dead. You need to charge it before you can start again.

 

[tsilover]

O and i thought it was something like that so i jumped the car tonight, same thing happened

 

[Lunch_Box]

But if it is a grounding problem power might be going somewhere else just enough for the car to die but not enough to kill the battery. And I am just throwing out some ideas to try and help him out, what help did you give?

 

[tsilover]

any other ideas? Wisemen?

 

[djsven]

Hi,

My thoughts are a bad ground connection! If you have a bad rusty ground connection it might get affected by temperature and weather changes. If the connection gets condensation, it will create more resistance and might show up as a broken or open cicuit.

I hope this helps.

Sven

 

[95blackGsTurbo]

Could be a ground problem with the fuel pump too.

 

[Turblown]

Check your Fuel Pressure Regulator Solenoid.

 

[Boosted98gsx]

Sounds weird, but make sure your MAS is plugged in all the way.

 

[Spyke169]

is it just bad at idle and everything above that is fine? if so it could be your idle control solenoid, but that wouldn't explain why it ran good once, I really don't know how you would check that, anyone know how to check that? my buddy's went out and that's what he thaught it was, so we bolted mine onto his car and it ran fine. If you got a buddy with a dsm try that

 

[Maglin]

It can't be ICS cause it died while he was driving and wouln't start for 15 minutes. I'm racking my brain and the 2 things I can think of are either ECU problem or possibly a fuel pump going out. Also the MAS suggestion is semi plausable. Disconnect your MAS and reconnect it. If you have a EPROM ECU check it as well to see if anything looks out of place or loose. If you have a pressure gauge on your fuel system check and make sure you are getting pressure after it dies and won't start back up.

Oh just hit me. If none of the above is working for you check your coil packs. I believe you can find a vfaq that explains how to ohm them to check if they are bad or going bad.

Only need fuel, air, and fire for a car to at least run. Seems you are missing one of those.

 

[tsilover]

Hey thanks for all the replies. I changed my fuel filter and pcv valve today because i thouyght it was starving 4 fuel. It won't even turn over now so i think it is the fuel pump. It just sounds like it's starving for fuel. O well, time 4 a walbro 255lph


PS before this all happened i would have problems witht he car bucking at speed. Like the motor would shut down for a second but come back seconds later by itself, could this also be because the fuel pump is going? Thanks all.

 

[djsven]

Hi,

Did you get any codes (check engine light)? If not, then it isn't your CAS or crank sensor. They normally give a code, if something goes wrong with them.

Sven

 

[PieTSI]

It sounds like you have a bad connection somewhere. When you turn the key to start the car listen to see if the fuel pump kicks on. If it does, then I would think you have some type of ignition problem somewhere. Check for spark on each cylinder to see if your ignition is working properly.

 

[tsilover]

Just installed a walbro 255 tonight. Car still doesn't start, like it'll idle rough 4 5sec and then die. Think it's the ics?

 

[BlackHalo]

Test it, and if you can get it to idle try and turn your ac on and see if the rpms pick up, usually if they do you can tell your isc is trying to work.

 

[tsilover]

Test it, and if you can get it to idle try and turn your ac on and see if the rpms pick up, usually if they do you can tell your isc is trying to work.

But my car won't start at all, except 4 5 seconds

 

[swordfish]

Just test the resistance on the ISC. That is a quick way to tell if its dead or not. Instructions are on VFAQ.com

jeff

 

[Maglin]

You should have checked for fuel pressure before buying a pump to fix it. Hope you also got an good FPR to go with that 255 or you are going to be running really rich most the time as it will over run your stock fuel pressure regulator.

Yeah I'm going to have to definitly lean towards an ignition problem now since you do have a new fuel pump installed. Still the ISC isn't going to stop the car from running it can just ruin the idle and make it stall but if you give it gas and it still stalls out it's not totally the ISC. Look for the Vfaq for checking your coil packs and check them out. If they are good it's a possibility that your ECU might be or have gone south.

 

[Defiant]

Insulate the positive terminal of the battery away from the underside of the hood.

 

[tsilover]

OK, i kept trying to start it and gave it some gas, not it runs but really rough and at about 400rpm.

 

[Maglin]

Hummmm... Almost sounds like it isn't firing on all cylenders. Have you checked your plug wires for any burn marks or holes in the plug boots?? It's possible that it's grounding out on the head and that cylender isn't getting spark. If you have a buddy with a 4g63 do a wire swap and see what happens. Another freebie to try out.