Very difficult to start in morning

Subject: Very difficult to start in morning
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I have a 1992 Dodge Dakota 3.9 liter V6.

In the morning, it is very difficult to start.

It has been like this for a long time, but it has been terrible the last few days.

Usually, it will start and rev up to 2000 rpm or so, then come back down and just stall out.

If I tried to hold the gas, it runs very rough and backfires. Usually I would pump the gas and it would start after a few more tries. Not sure if this was just my imagination, though. Maybe the pumping had nothing to do with it.

The last few days I have been having a hell of a time getting it to start. It tries to start once, but runs very rough. I shut it off and try it again and there is nothing. The engine just turns over, but doesn't even try.

If I pump the gas, it starts to flood and smell like gas.

Please help. With college and bills, I don't have the money to take it somewhere. I have some experience working with cars.

J and J Auto
GenII

2/04/2004
23:06:59

RE: Very difficult to start in morning
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sounds like a fuel problem.

Check the presure you will find a shrader valve
on one of the fuel rails should be 40 to 50 pounds
as soon as the truck is turned over.

Hit an autozone they will do a scan for free and
let you know if you have any bad sensors

Larry
J&J Auto

92Dakota
Dodge Dakota
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2/05/2004
00:07:00

RE: Very difficult to start in morning
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A shrader valve that looks like the ones on tires and stuff?

Do I just measure it with a tire gauge while cranking?

What do I ask the people at autozone to do?

Will they still be able to tell even if it is not having the problem at the time? It is real bad in the morning, but starts ok the rest of the day.

Could it be clogged injectors? They are original with 75k miles.

Thanks!

92Dakota
Dodge Dakota
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2/05/2004
18:36:47

RE: Very difficult to start in morning
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Hi

I changed out the TPS sensor and its still the same.

What it seems to do is...

Start, rev up to 2000rpm or so in sync with the starter, then it slowly comes back down and stalls. Also, when I rev it while running, it revs, then comes back down and almost stalls, but comes back up to idle RPM just before it does.

Almost like its starving for fuel???

Driving down the road, there are no problems at all.

J and J Auto
GenII

2/05/2004
20:54:01

RE: Very difficult to start in morning
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Check your IAC back of Throttle body sounds like
it is not reacting fast enough.

Clean gently with carb cleaner put a little oil
on the oring and reinstal, you can watch the
operation of the IAC by looking down the cutout
in the throttle body on top behind the 2 main
bores.

It is either carbond up and hanging up or just
bad and needs to be replaced

When off it should be back off the seat when
started it will move foward to close off air flow
when you rev the motor it will move back off the
seat and when you let off it will move foward
again.

Autozone can watch the steps it makes with a scanner to see if its operating properly rev steps
go up idle step # will drop

Just tell autozone you have an idle prob and
need to scan truck to check IAC Idle Air Control
solonoid

Larry
J&J Auto

92Dakota
Dodge Dakota
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2/06/2004
02:32:44

RE: Very difficult to start in morning
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Thank you so much!

I will get out there early tomorrow.

I have the one off my old V6 throttle body. It is very carboned up, though. Maybe I should go to a junkyard and get that piece.

Can I buy this new?

Hopefully not from DC. They wanted $70+ dollars for a TPS sensor.

xmr
GenIII

2/06/2004
11:35:59

RE: Very difficult to start in morning
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You can order a tps from Auto Zone for about $26 plus shipping from their web site. All the stores that I went to had it as a special order item only. I got mine within 3 days after I ordered it.

Home brew cold air with K&N,Dynomax, Superchip Tuner, 1.7 RR,, F&B tb. NAPA cap and rotor, 3923 plugs

92Dakota
Dodge Dakota
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2/07/2004
18:51:30

RE: Very difficult to start in morning
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ARGH!

I bought a IAC sensor and cleaned it up and its the same problem. I highly doubt that its a throttle body problem since it was doing it with the old V6 throttle body on it too.

Yeah...I forgot that important detail. Heh.

I did some searching and the following was suggested...

EGR Valve
Idle Speed Motor
Idle Position Sensor (Is this same as TPS?)

Any ideas on whether or not these will work?

Where are they located?

Thanks again!

92Dakota
Dodge Dakota
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2/07/2004
19:54:57

RE: Very difficult to start in morning
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I just changed out the IAT sensor. I didn't think it would do anything, but the old one was dirty as hell.

It didn't change anything.

If anything, these swaps sure made it run smoother. Unless its my imagination.

92Dakota
Dodge Dakota
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2/08/2004
23:08:32

RE: Very difficult to start in morning
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Any ideas???

It just does it at random times.

It started up fine all day today. Then it just suddenly decided to do it again.

RB
Dodge Dakota
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2/12/2004
12:10:53

RE: Very difficult to start in morning
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I had that problem w/93 Dat. Had fuel pressure ck. {ok} and replaced one [1] injector and solved the problem.

92Dakota
Dodge Dakota
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2/12/2004
16:24:53

RE: Very difficult to start in morning
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Anyway to test injectors?

_Michael_
Dodge Dakota
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2/12/2004
18:55:39

RE: Very difficult to start in morning
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[quote]A shrader valve that looks like the ones on tires and stuff?
Do I just measure it with a tire gauge while cranking?[/quote]

No,you need some thing like this.(See link)

http://www.actron.com/cgi-bin/web_store.cgi?page=km2530.htm&cart_id=6976838_97779

andy
Dodge Dakota
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3/12/2004
23:45:03

RE: Very difficult to start in morning
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Just resolved the cold start problem on my 92 dakota 3.9. the problem was the oil pump drive gear (which also drives the distributor) being excessively worn. the computer couldn't keep up the timing when in open loop, because of all the slop in the distributor which I had replaced two years earlier. the distributor is fine, the oil pump drive gear was worn, the truck exhibited cold start idle problems, but when warm it ran perfectly. drove me nuts for a month.

JXL12
Dodge Dakota
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10/22/2009
20:11:55

MWjBMSqSUpomCgw
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I used to hang out with cokeheads. ,

Tyler
Dodge Dakota
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10/24/2009
00:13:30

RE: Very difficult to start in morning
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I have this problem sometimes. I just deal with it. I dont have the starting issue but the revving and almost stalling...

well
Dodge Dakota
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10/24/2009
08:26:42

RE: Very difficult to start in morning
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Tyler what year is your truck?

P 1

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