Garage Storage Organization and Garage Cabinets

Turbo-Baron · **Motor randomly dies! Help!!**

Ok so this has been happening for quite some time. Most of the time my car runs great no prob. But sometimes it just randomly sputters out and dies. Ill let it sit for about 10 mins and it will be fine sometimes for the rest of the day sometimes for 10 mins. Take today for example. I drove to toronto (about 100km) About halfway there it pooed out on me on the highway. I let it sit for about 20 min started up and i was on my way . It got me about 30 more km then died again!. This happend about 5 times in roughly 130km. Then the drive home it was perfectly fine. I was driving the crap out of it on the way home aswell. I just don't get it what could this be. Somebody plz help me out here it's driving me nuts. Car is an 89 2.5 TI lebaron.

Thanks
Brendan

turbomini · 08-29-2007, 03:21 AM

try the HEP(hall effect pickup) that sounds like what my omni would do and i changed that and it was fine.

NAJ · 08-29-2007, 03:29 AM

When it restarted did it start right away or require cranking? Where any fault codes set? First we have to determine weather this is fuel related or ignition or both. The most likely causes would be fuel pump, hep, ignition coil or asd relay or circuit. I would start by being sure all electrical connectors at the coil, hep and asd are clean,tight and secure with no signs of damage such as corrosion,burnt/frayed wires,etc. Also check all underhood grounds for the same.

Turbo-Baron · 08-29-2007, 11:30 AM

If i tried to restart it right away it won't. Or it will start then sputter out again. But letting it cool off a bit seemed to work.There were no codes.

NAJ · 08-29-2007, 12:09 PM

It sounds like a fuel Pressure problem.You are probably going to have to install a fuel pressure gauge and see what happens to fuel pressure when the vehicle dies. We run into this all the time and usually we just hook up the gauge and let the vehicle run,sometimes it takes hours. You cannot diagnoise the problem until the problem occurs.

Turbo-Baron · 08-29-2007, 12:12 PM

Fair enough. I think it might have somthing to do with how hot it gets. Now that i think about it it usually happens on hotter days.

NAJ · 08-29-2007, 12:18 PM

That is what fuel pumps usually do,that is why we leave the car running with the gauge hooked up. Intermittant problems like this are difficult only because you cannot simulate the condition,you have to wait until it does it by itself. You may start to see a drop in fuel pressure before it gets low enough to make the vehicle die. Again,it may be another electrical component but you have to start somewhere.

Endo · 09-02-2007, 12:55 AM

Does it sputter then die, or just flat shut off? Next time it wont start for you, Try turning the key to the on position (not start), and listen for the fuel pump to prime (quiet buzzing/ whirring noise on most cars, with my 255 and 190 inline it sounds like its getting ready for takeoff). If it primes and the car still wont start, you need to look to your ignition system. If the pump doesnt prime, then your looking at either a bad HEP (little plastic disc under the dissy cap), or a failing fuel pump. A bad HEP often wont set a code, mine was bad for 5 months before it finally decided to set a code. Note that the fuel pump wont prime if you've turned the key on and off 3 or more times without starting the vehicle, it doesnt prime in diagnostic mode.

If it just randomly shuts off like nothing happened with no sputter, save yourself the trouble and just replace the HEP, I dont know of anything that'll kill the car like that other than turning the key off. A bad HEP will also cause the Tach to read 0 when it acts up, even in gear.

Good luck.

Turbo-Baron · 09-02-2007, 01:54 AM

After everyones input im pretty sure it's the HEP. so ill give that a shot. Thanks guys. Eveyone has been a huge help as always

charger R/T · 09-02-2007, 04:46 AM

a bad hep usually won't set a code. so next time it shuts off and won't restart. check for codes. if none are there disconnect the battery to clear memory and try to restart it. if it won't start recheck for codes to see if an 11 shows up.
Tim

NAJ · 09-02-2007, 06:28 AM

All Good Suggestions.
If it is a HEP problem you may also get a Code 54 which is the Fuel Sync side of the HEP. If you do not hear the Pump Prime could also be an ASD related problem.
Keep us Posted.

Turbo-Baron · 09-02-2007, 03:14 PM

I usaually check for codes everytime it dies. There has never been any.

NAJ · 09-02-2007, 03:19 PM

If the problem is with the HEP or ASD relay you will lose power to the + coil, injectors and fuel pump with the engine cranking,if it is the fuel pump you will only lose fuel pressure.

663CSX-T · 09-02-2007, 11:05 PM

when i had my 2.2 in my shadow my car would just die ill just be driving and it just flat out die after a week messing with it come to find out i had a bad injeter plus running to rich

charger R/T · 09-03-2007, 08:10 AM

Quote:

Originally Posted by Turbo-Baron

I usaually check for codes everytime it dies. There has never been any.

the code used for a HEP will not set if the computer has ever seen a good HEP signal. you must reset the computer and the computer not see a signal to set a code 11. once it sees a signal it will not ever set a code 11. look at this Fault Code 11 this is why I said to reset the computer after checking for codes when it won't start. If the HEP is your problem resetting the computer tring to start and rechecking for codes may show the code.
Tim