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Mario
Dodge Dakota
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4/11/2009
19:44:49
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 Subject: stalls after start
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Message:
ok so....my truck lost all of its low end...now when i start it, it dies. if i hit the gas once it starts it will then catch itself and idle but if i dont...it just dies. iac, map, and tps are all BRAND NEW so i am officially lost. i dont have much knowledge on cam and or crank sensors but ive been researching and i think that may be it. any info or knowledge on how to diag this problem is greatly appreciated.
i think whatever it is is going bad and finally went cause first i lost my torque and now it wont idle.........oh yeah and the TB is so clean it shines...
thanks in advance,
mario
|
yeah well
Dodge Dakota
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4/11/2009
19:47:43
| RE: stalls after start
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More info
Year, Motor
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YO
Dodge Dakota
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4/11/2009
20:44:26
| RE: stalls after start
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have you checked the fuel pressure?
and i dont mean guess
i'm talking actually putting a pressure gauge on the schrader valve?
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fuel filter
Dodge Dakota
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4/11/2009
23:22:57
| RE: stalls after start
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duh what yeah what kinda gas...sheet or 91 oct
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Mario
Dodge Dakota
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4/12/2009
00:58:55
| RE: stalls after start
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1997 3.9 4x4, i will be checking the fuel pressure soon... i just need to go too autozone and rent the tester. but...tomorrow is easter sunday. i was runnin 93 then VERY RECENTLY switched to 91 and full synthetic oil. i also replaced the pcv valve and although it didnt fix my problem i got more oil pressure somehow. one of my buddies has a ram 2500 with a v-10. his truck lost its torque, hard to start then sometimes died, his symptoms were the same as mine and one day it finally quit for good and turned out to be the fuel pump. replaced it and his truck ran like new again.
also what amount of fuel pressure would be considerd good or acceptable?
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Problem Child
GenIII
4/12/2009
20:56:38
| RE: stalls after start
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Message:
I would check fuel pressure, should be between 44.2 to 54.2
|
well
Dodge Dakota
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4/12/2009
21:58:45
| RE: stalls after start
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Mario if you don't have a fuel pressure gauge
or have a buddy to borrow one from
check your local auto parts chain/store
they have tool loaner programs
you leave a deposit and get it back when you return the tool
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Mario
Dodge Dakota
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4/12/2009
23:01:15
| RE: stalls after start
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Message:
checked the fuel pressure today...got tool from auto zone...160.00 deposit. all checks out ok on the guage, the pressure was right where it should be. i talked to my old boss today who is a mechanic and owns his own shop and he said some sort of timing issue. what do you guys think? i was wondering if maybe my chain has stretched to this point and the motor is now out of time. the chain has been clanking for a good 20,000 miles now but why would this problem INSTANTLY appear??
PS: checked for codes and their are none so it makes me belive that its a mechanical issue and not a sensor cause if it was it SHOULD (not saying it will) throw a code.
what do yall think??
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well
Dodge Dakota
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4/12/2009
23:50:54
| RE: stalls after start
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Refresh my memory here
how many miles on this motor?
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daddio
Dodge Dakota
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4/13/2009
12:14:38
| RE: stalls after start
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"now when i start it, it dies. if i hit the gas once it starts it will then catch itself and idle but if i dont...it just dies"
does thi happen just on the first start of the day? or is it an everytime occurence?
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well
Dodge Dakota
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4/13/2009
16:26:56
| RE: stalls after start
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daddio you thinking battery?
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daddio
Dodge Dakota
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4/13/2009
16:39:47
| RE: stalls after start
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YUP! a weak battery will do that everytime.
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well
Dodge Dakota
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4/13/2009
21:26:06
| RE: stalls after start
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Message:
I thought the same but take it for granted it would be the first thing someone checks
Mario Get your battery load tested
make note not just tested but "Load" tested
a battery can test ok with a normal test
only the load test will show if it has a dead cell
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Mario
Dodge Dakota
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4/13/2009
22:46:48
| RE: stalls after start
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Message:
all righty then guys,
i was so far into it i didnt even think to check something as dumb as that. it will do it when the truck has not ran for a while. if i shut it off after running for a while it will restart without an issue, if i just try to start it after a few hours...nothing just fires up and dies....i will have it load tested tomorrow and will get back you.
i checked the coolant temp sensor and that was all ok.
thanks again for all the help i really appreciate it.
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mario
Dodge Dakota
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4/14/2009
23:16:43
| RE: stalls after start
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battery was load tested today and that wasnt it either....im soooooooo out of ideas. runs fine after i put my foot on the gas for like 10 seconds during start up. and if i drive it for like 5 min after i get it running, i shut it off and it fires right back up no problems.....
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daddio
Dodge Dakota
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4/15/2009
08:34:43
| RE: stalls after start
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Message:
what abouot battery connections and grounds? are they nice and shiny clean?
you did state that you changed the IAC correct?
any codes?
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HUNTING
Dodge Dakota
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4/15/2009
11:07:53
| RE: stalls after start
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Message:
How about fuel pressure check valve?
Sounds like the fuel rail is losing pressure after sitting for a while.
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daddio
Dodge Dakota
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4/15/2009
13:13:33
| RE: stalls after start
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Message:
hunting may be on to something. check the fuel pressure while runnning then shut the motor down and see how long it takes to bleed down.
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well
Dodge Dakota
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4/15/2009
16:39:33
| RE: stalls after start
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Message:
or leaking injector
damn this sucks we're throwing everything at this guy and we ain't nailed it yet
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mario
Dodge Dakota
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4/15/2009
23:29:34
| RE: stalls after start
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Message:
yeah i know it sucks..lol
but anyways, i replaced BOTH O2 sensors today.....wasnt them either. i will rent the pressure tester again and check the leak down. how long should it take to bleed down or should it at all?
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daddio
Dodge Dakota
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4/16/2009
08:36:49
| RE: stalls after start
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"how long should it take to bleed down or should it at all?" i would consult a service manual.
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