Engine dies when I come to a stop!

[Ground Rat]

My van just started do this. If I slow suddenly the van will idle real low for a second and will sometimes die. Sometimes it will die even before I've come to a complete stop! I have a nearly full tank of gas too. Any ideas?

:confused: :mad:

[Tony Hanna]

Check your codes and see if it's set a code for the vehicle speed sensor. I've heard of stalling problems when the vss is on it's way out.

[Murphy]

+1 on vss aka sds

[Whorse]

I have the same problem and I'm pretty sure it's speed sensor.

[mpgmike]

Another common problem is the idle speed motor gets gummed up. Remove the AIS and with carb cleaner thoroughly clean it and the hole from whence it came.

Mike

[crazy1eye]

+1 for the speed sensor.

[Ground Rat]

I went to the parts store today and I guess there is an input VSS and an output VSS. Which one would I need? What other trouble shooting can I do before buying a new $30 sensor? Also my engine light is not on; I don't know if that matters.

[Ground Rat]

Also, I tried to check engine codes by turning the key to accessory three times, but nothing happened. How do I check my codes?

[cordes]

Also, I tried to check engine codes by turning the key to accessory three times, but nothing happened. How do I check my codes?

You have to turn it to run three times in about 3 seconds I believe.

[5sp. mini]

turn it on and off 3 times.also why it idling pull a vac. line then after it revs up pull the ism plug that why the ism is all the way out and leave it unpluged and see what it does. you can use a other tm vss. there is only one of them so i don,t know what they are talking abount? als

[cordes]

turn it on and off 3 times.also why it idling pull a vac. line then after it revs up pull the ism plug that why the ism is all the way out and leave it unpluged and see what it does. you can use a other tm vss. there is only one of them so i don,t know what they are talking abount? als

There are actually a couple different styles of SDS. Hoever all can be used with only slight modifications. I would prefer to use the one for the car, as it would be plug n' play.

[jre97]

Dumb idea but is your battery fully charged? I knowafter my car sets awhile with the radio or some lights on for example and the battery starts to get low it will die when you let off the gas, come to a stop etc... Also by input and output vss one is probably the one on the tranny that sends the signal and the other is probably the one in the speedo that gets the signal, but that's just a guess.

[frankie]

Just a thought.check your E.G.R valve.

[Tony Hanna]

The only main difference I'm aware of is that some of the '88 and older cars had an output for a speedometer cable on the vss and some of the '88 and newer didn't. Must have been a mid year change or something because the Daytona didn't have a cable but the Sundance does (both are '88). Could also be a difference between G and P bodys, but whatever... Point is, some have an output for a cable, some don't.
HTH,

[Dave]

Just a thought.check your E.G.R valve.

We don't have those. :thumb:

But a +1 on the SDS.

[DodgeZ]

http://www.fwdperformance.com/store/Product.asp?IDCatalog=5&ProductID=167

[DodgeZ]

or
http://www.partsamerica.com/ProductDetail.aspx?mfrcode=GPS&mfrpartnumber=7799503

[JDAWG]

or dealer. Is your van a turbo?

[frankie]

Dave,
I have an 86 LeBaron GTS and an 87 Shadow ES,both with 2.2 turbos,and they have E.G.R valves.:confused:

[cordes]

Dave,
I have an 86 LeBaron GTS and an 87 Shadow ES,both with 2.2 turbos,and they have E.G.R valves.:confused:

Yeah, thats right. I think that 88 was the first year for the EGRless TMs. Although I think that cali still had them?

On a side note, there were more differences than the cable V. no cable SDS. The number of wires varies by year too. There was a good post about that a week or two ago on here.

[Dave]

Yeah, thats right. I think that 88 was the first year for the EGRless TMs. Although I think that cali still had them?

On a side note, there were more differences than the cable V. no cable SDS. The number of wires varies by year too. There was a good post about that a week or two ago on here.

He said van. I know '88 or '87 and before had EGR valves, I remember reading that in the Mopar Perf. book. Aren't they only on the suck throughs?

Being a van, '89+, they only came with a 2.5 T1 motor.

Back on track now.

[Ground Rat]

Dumb idea but is your battery fully charged? I knowafter my car sets awhile with the radio or some lights on for example and the battery starts to get low it will die when you let off the gas, come to a stop etc...

Weird...maybe that was the problem. It's not doing it any more. The next time it does though I will check the voltage. :thumb:

[Whorse]

Mine is very intermittent. Sometimes it seems to do it when it warms up a bit over normal driving, like when I'm idling in a parking lot. Other times it's on a low tank as if it was the fuel pump or filter. I changed my SDS, and it still did it this morning but didn't quite die.

If you have time, I guess just knock one thing off at a time. If the SDS doesn't do it, check your TPS, if not, check fuel pump and filter. Good? Check AIS, injectors, whatever else you can think of that might do it.

[DodgeZ]

He said van. I know '88 or '87 and before had EGR valves, I remember reading that in the Mopar Perf. book. Aren't they only on the suck throughs?

Being a van, '89+, they only came with a 2.5 T1 motor.

Back on track now.
What about a 89 California model?

[cordes]

What about a 89 California model?

I think that even the 90' cali models had EGR.

[3nglenn]

Might want to take a look at http://minimopar.knizefamily.net/ecu/speed_dist_se.html G.P.

[MiniMopar]

Often intermittent SDS problems has more to do with the connector than the sensor itself. You can try remove the sensor, cleaning the oil out of the connector socket, taking the pins out of the connector itself and carefully squeezing the contacts so that they make a better connection to the pins in the socket. Liberally apply some silicone grease on the weatherpack seal to keep the oil out.

There are several styles of SDS, all pictured here:

http://minimopar.knizefamily.net/speedsensor.html

The one that FWD-P sells is a "universal" kit that will work in any vehicle that uses the 2-pin SDS. It looks like the 2nd one in the picture and comes with a dongle to adapt to the old ('86 and earlier) non-GM Weatherpack style connector (far left style). It should also have a cap to cover the speedo cable connection if yours is electronic. These sensors have a glass-enclosed dry contact inside and it is this contact that wears out.

The one that FWD sells won't work if you have the 3-pin style (the one on the far right). As that page discusses, the 3-pin style is a hall effect sensor that should last far longer than the old style. You can adapt a 3-pin to an older vehicle with a little work.

In the meantime, you can bump the minimum air adjustment for a while to keep it from stalling. Cleaning out the TB and AIS can also help a bit:

http://minimopar.knizefamily.net/idleproblems.html

[MiniMopar]

OK, I finally dicumented the procedure for the hall effect sensor modification:

http://minimopar.knizefamily.net/speedsensor.html#convert

[Dave]

What about a 89 California model?

:blah:

[Whorse]

the 90 VNTs in cali had EGR too

[DodgeZ]

:blah:

Since I have one in the backyard I took some pictures to insure your ownage :nod:



http://boostedmopar.com/forums/images/faq/intake/egr_intakes/egr_intakes_01.jpg

http://boostedmopar.com/forums/images/faq/intake/egr_intakes/egr_intakes_02.jpg

http://boostedmopar.com/forums/images/faq/intake/egr_intakes/egr_intakes_03.jpg

http://boostedmopar.com/forums/images/faq/intake/egr_intakes/egr_intakes_04.jpg

http://boostedmopar.com/forums/images/faq/intake/egr_intakes/egr_intakes_05.jpg

http://boostedmopar.com/forums/images/faq/intake/egr_intakes/egr_intakes_06.jpg

http://boostedmopar.com/forums/images/faq/intake/egr_intakes/egr_intakes_07.jpg


Just busting your chops Dave :thumb:

[BadAssPerformance]

lol, I wonder what the tree growing up through the headlamp door will look like in 20 years!

[DodgeZ]

lol, I wonder what the tree growing up through the headlamp door will look like in 20 years!

Those damn briars won't die. You should have seen it last year. It was huge patch 12' high.

http://boostedmopar.com/forums/attachment.php?attachmentid=232&d=1128088181

[BadAssPerformance]

Holy crap!