Not starting

Tiny
EVILNINJA65
  • MEMBER
  • 6 POSTS
I can hear from the cab two bump sounds and a quiet whine that lasts about 3 secs which I'm sure is the pump priming and the filter is a non replaceable type in the fuel pump assembly. Thanks for the quick reply.
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Sunday, August 18th, 2019 AT 12:03 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,217 POSTS
I believe it is replaceable. It's mounted in the fuel pump module. Regardless, if you are not getting fuel to the engine, either it has clogged or the pump is weak or bad. If you use starting fluid, can you get it to start?
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Sunday, August 18th, 2019 AT 12:03 PM (Merged)
Tiny
EVILNINJA65
  • MEMBER
  • 6 POSTS
Sometimes the pressure behind the rail is enough to start and after it starts it runs completly fine no issues, but turn it of and at the end of the next prime cycle there may be no fuel in the line.
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Sunday, August 18th, 2019 AT 12:03 PM (Merged)
Tiny
MIKEMOYA
  • MEMBER
  • 1 POST
  • 1998 DODGE DAKOTA
  • V8
  • 2WD
  • MANUAL
  • 18,000,000 MILES
My truck will turn over but wont catch to start. Battery has power. I have half a tank of good gas. I've tried jump starting from car to car and from charger to car. Was running fine but when I stopped to ideal and let a friend out it stalled and then wouldn't start again after it had been running about 30 minutes. Trunk is king cab 1998 Dakota stick with a v8.
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Sunday, August 18th, 2019 AT 12:03 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,217 POSTS
You need to check to see what is missing, spark or fuel when it doesn't start. From that point, you should be able to pinpoint what components are the possible cause.
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Sunday, August 18th, 2019 AT 12:03 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,217 POSTS
If you hear the pump prime and there is no fuel, either something is clogged or the pump is bad or weak.
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Sunday, August 18th, 2019 AT 12:03 PM (Merged)
Tiny
LANDOJMAR
  • MEMBER
  • 2 POSTS
  • 1998 DODGE DAKOTA
Electrical problem
1998 Dodge Dakota 6 cyl Two Wheel Drive Automatic 130k miles

I recently installed a new automatic transmission in my 1998 dodge dakota.
The install took awhile, but other than that seemed to have gone well. When I tried to start it up, it wouldn't go. It only took me a minute to figure out that there was no spark.
I have checked and re-checked all visible wiring for proper connection and/or damage. All, as far as I can see, is well. I followed the trouble shouting procedure in the repair manual for no start in the electrical section:
-check for spark at plug
-check for spark at ignition coil wire
-check for voltage to ignition coil

This is where I think the problem may be. There is voltage at the ignition coil when the key is turned part way, but only for a second, then it drops to zero. Also, when the engine is being turned over, there is no voltage. The next step is to check the Automatic Shutdown Relay, I swapped it for another one and that didn't make a difference either.

The last two checks are:
-signal from the PCM
-and crank and camshaft positon sensors

Is it possible I have just missed a wire somewhere?
Or is it more likely that I have damaged a sensor during the install (but would that result in no voltage to the ignition coil?)

Any ideas?

Thanks a bunch,
Landon
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Sunday, August 18th, 2019 AT 12:04 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,217 POSTS
I think you loostened or missed a wire. Make sure the harness to the PCM is tight, not damaged, and none of the pins are pushed in. A cam sensor isn't going to cause what you described, and the PCM doesn't just go bad sitting.
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Sunday, August 18th, 2019 AT 12:04 PM (Merged)
Tiny
LANDOJMAR
  • MEMBER
  • 2 POSTS
Thanks. I will check the PCM harness.

I forgot to mention in my first post that the supposed cause of the transmission failure was a shorted out O2 sensor. I have replaced both O2 sensors. If there is a short in the O2 sensor wiring, and not the sensor itself, might this cause the problem I am having?

Thanks,
Landon
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Sunday, August 18th, 2019 AT 12:04 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,217 POSTS
No, it wouldn't cause the problem. Actually, I can't see how it had any relationship to the trans problem.
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Sunday, August 18th, 2019 AT 12:04 PM (Merged)
Tiny
JAMES31965
  • MEMBER
  • 1 POST
  • 1998 DODGE DAKOTA
  • 4 CYL
  • 2WD
  • MANUAL
  • 182,000 MILES
I have a 98 dodge dakota. Just rebuilt engine last year was running good. One day tried to start will turn over no fire. Gages do not read. Lights and indicators light up battery reads good. Tried obd can not connect to read. Any ideas?
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Sunday, August 18th, 2019 AT 12:04 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Cranks but no start condition:

Fuel and Spark:
Get a helper disconnect a sparkplug wire or 2 and ground it to the engine at least 3/16 away from ground -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it.
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Sunday, August 18th, 2019 AT 12:04 PM (Merged)
Tiny
JFULLERTON
  • MEMBER
  • 2 POSTS
  • 1998 DODGE DAKOTA
  • V8
  • 4WD
  • AUTOMATIC
  • 115,000 MILES
So over the past year, I've been having problems with my truck not starting. I always make sure that my lights and radar detector are off when I get out. But weekly like clockwork, I have to open the hood, clean the positive connection on the battery and the cable as well (about a teaspoon worth of that bluish white corrosion builds up on it in that amount of time). A coworker said it could be the ground cable that's probably not secured all the way. I only have basic knowledge on vehicles, if it is that cable, which one is it and is it easy to fix?
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Sunday, August 18th, 2019 AT 12:04 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,217 POSTS
Hi:
The white corrosion that you clean comes from battery acid. If you always have the problem, I would question the condition of the battery. Is it very old? Also, they make a battery protector that is like spray paint. I works really well.

Let me know if you have any other questions.

Joe
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Sunday, August 18th, 2019 AT 12:04 PM (Merged)
Tiny
JFULLERTON
  • MEMBER
  • 2 POSTS
I've replaced the battery a few times, so I don't think that's an issue here. Is that spray a common item to be found at autozone or any place like that?
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Sunday, August 18th, 2019 AT 12:04 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,217 POSTS
Hi:
I called my buddy who owns a shop near me and asked for the product name for you. He said on the front of the can is says "Battery Protector and Corrosion Inhibitor" The product he has is manufactured by Mighty. The part number is V72

He also informed me that you can purchase this type of product at any parts store. It may be under a different name, but it will do the same thing.

I hope this helps. If you have any other questions, let me know.

Joe
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Sunday, August 18th, 2019 AT 12:04 PM (Merged)
Tiny
TERESA11
  • MEMBER
  • 1 POST
  • 1998 DODGE DAKOTA
  • 2WD
  • 151,000 MILES
Why will my truck not fire after sitting when it rains
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Sunday, August 18th, 2019 AT 12:04 PM (Merged)
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
When the problem occurs, if it cranks good but won't start, have a helper crank it, while you check for spark at the plugs. If you have spark everywhere, use a gage and check fuel pressure. Any applicable trouble codes?
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Sunday, August 18th, 2019 AT 12:04 PM (Merged)
Tiny
LISALOU12
  • MEMBER
  • 1 POST
  • 1998 DODGE DAKOTA
  • 80,000 MILES
My truck wont start it is not throwing any codes could it be pickup coil?
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Sunday, August 18th, 2019 AT 12:04 PM (Merged)
Tiny
CARADIODOC
  • MECHANIC
  • 33,744 POSTS
Have you checked for spark? What about fuel pressure? Check if the automatic shutdown, (ASD) relay is turning on during cranking. Measure the voltage on the dark green / orange wire at the ignition coil or any injector. You should see 12 volts there for one second after turning on the ignition switch. What's important is whether that voltage comes back during cranking.
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Sunday, August 18th, 2019 AT 12:04 PM (Merged)

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