|
|
engine crankes up then dies 1992 dodge dynasty
|
|
|
| |
|
JohnsShadow
New User
Oct 16, 2009, 12:50 PM
Post #1 of 4
(4528 views)
|
engine crankes up then dies 1992 dodge dynasty
|
Sign In
|
|
hi i have a 1991-1992 (we think the car was rebuilt with 92 parts because the VIN says its a 91) dodge dynasty 6 cylinder 3.3 liter engine the problem: after the car starts,.. it will die, i crank it up it starts, revvs up then dies stays alive for maximum of 3 seconds, if i hit the accelerator the car will revv up and stay alive for about 4-5 seckonds then die all the parts i have replaced and hopefully in the order i replaced them in the fuel pump has been replaced about a year and a half ago (autozone) the computer has been replaced less then a year ago (dealer part) CV axle's front driver and passenger (O'rilleys) cattilic converter (mecannic part) O2 sensor (Orilleys) Problem with car starts i have tryed changing the fuel filte, to no avail (O'rilleys) i inter changed a distributor cap with a 96 dodge intrepid to see if that was the problem (same part) i ran some diagnostic on my car with my uncle and dad (both are or have been mecannics) fuel pressure 40psi when i hit the accelator 50psi we noticed the spark plugs were not produging a lot of spark, what happned: i was driving down the road and i saw cheap gas i was kinda low so i decided to go for it filled it up with 10$ worth of fuel, went to start the car and that is when the problem first arose my current mission is to get some engin starter and spray it into the intake maniflod to see if the engin stays on
(This post was edited by JohnsShadow on Oct 16, 2009, 1:02 PM)
|
|
| |
|
Hammer Time
Ultimate Carjunky
/ Moderator
Oct 16, 2009, 1:03 PM
Post #2 of 4
(4520 views)
|
Re: engine crankes up then dies 1992 dodge dynasty
|
Sign In
|
|
Your going to have to monitor fuel pressure, spark and injector pulse as the engine dies to determine which one is dropping out first. That's the only way to isolate the cause. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
|
|
| |
|
Hammer Time
Ultimate Carjunky
/ Moderator
Oct 16, 2009, 1:22 PM
Post #4 of 4
(4506 views)
|
Re: engine crankes up then dies 1992 dodge dynasty
|
Sign In
|
|
OK, you've got the fuel pressure covered. Now you need to monitor the spark and injector pulse. Use a spark tester at the end of the plug wire and a noid light bulb plugged into one of the injector plugs. When it stops flashing, you lost injector pulse. If your losing injector signal, then you also want to monitor the power wire to the injectors to see if that is dropping out. Spark tester noid light ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
|
|
| |
|