Truck occasionally dies when stopping

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#11

05-10-2011 | 07:28 PM

olsarge

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From: Fresno, Ca

Check your transmission fluid level. If it is low it will cause the TC to stay locked up.

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#12

05-10-2011 | 08:29 PM

Derek2002

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From: Mckee,Ky

Quote:

Originally Posted by tinmanchris

Thanks for the heads up. I was reading that it was best to split it to thirds for the vacuum line, oil and gas so that's what I'm probably going to do. I am tempted to actually do 1/2 oil and vacuum and a full bottle for gas since I'm getting pretty bad mpg and the truck isn't as peppy as it used to be.

I'm more worried of annoying my neighbors or the city of Seattle. :P

When I did my truck I poured half of it slowly in the brake booster line and let it sit for about 5 mins then I put the other half in the fuel injector cleaner tool we use at walmart which lets it slowly drip into the vacuum line.It smoked like crazy.

Last edited by Derek2002; 05-10-2011 at 08:31 PM.

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#13

05-11-2011 | 05:07 PM

tinmanchris

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Quote:

Originally Posted by olsarge

Check your transmission fluid level. If it is low it will cause the TC to stay locked up.

Didn't think about that. I checked my Automatic transmission fluid and it's good to go.

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#14

05-13-2011 | 10:51 PM

tinmanchris

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Couple of updates, clean out my IAC and added seafoam to my fuel. Took it for a drive today and still has the same issue. What should I do next? Also what is the standard idle RPMs? Mine is a little above 500 at rest.

Should I order/replace my IAC? I ran some tests on my IAC and I think it's working fine. What I did was unplugged the IAC, turn on AC, put in drive, and moved the power steering left and right... truck pretty much died right away. Once I plugged it back in I ran the same tests and the IAC did it's job of reeving up the engine to prevent the truck from dying.

Maybe it's the PCM now?

Last edited by tinmanchris; 05-13-2011 at 11:20 PM.

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#15

05-13-2011 | 11:41 PM

tinmanchris

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Anyone know what are the standard RPMs for a 4.7 V8?

Last edited by tinmanchris; 05-23-2011 at 12:12 AM.

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#16

05-23-2011 | 01:00 AM

tinmanchris

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Bought a IAC valve, will arrive in a few days and will keep everyone posted.

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#17

05-23-2011 | 08:50 PM

98dakota98

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From: richmond, va

could be the computer. i had it happen to a friend. his durango would randomly shut off while driving. after spending over $1k trying to fix it and having shops look at it, he replaced the computer and it's been fine since then

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#18

05-24-2011 | 06:06 PM

tinmanchris

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Quote:

Originally Posted by 98dakota98

Interesting, I'll keep that in mind. Did they replace the PCM (computer) or just update the firmware?

I got my IAC today so I'll be swapping it out tonight. I'll be so happy if it fixes it.

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#19

05-24-2011 | 08:26 PM

samnbensdad

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From: Indianapolis, IN

How old is your battery? A dying battery may be strong enough to start the truck but not have enough output to keep all the electronics working at low rpms. Sounds counter-intuitive, I know, but it happens all the time. If your battery is more than 5 years old, replace it.

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