Go Back  DodgeForum.com > Dodge Trucks > Dodge Dakota > 1st Gen Dakota Tech
Reload this Page >

Truck died while at the stop sign. 88 Dakota 3.9 V6 automatic

1st Gen Dakota Tech 1987 - 1996 Dodge Dakota Tech - The ultimate forum for technical help on the 1st Gen Dakota.

Truck died while at the stop sign. 88 Dakota 3.9 V6 automatic

  #1  
Old 03-26-2019, 07:18 AM
Josh89Griffin's Avatar
Josh89Griffin
Josh89Griffin is offline
Professional
Thread Starter
Join Date: Apr 2017
Location: South Georgia
Posts: 167
Default Truck died while at the stop sign. 88 Dakota 3.9 V6 automatic

On the way to work this morning, my 88 Dakota 2WD 3.9 V6 automatic died on me. Got it cranked back up and going. Sounded like it was idling high. I had to slow down to make a left hand turn at the green light and the truck died again, so I coasted off to the side of the road. Put it park and fired it back up & it sounded like it was idling high again.
The gas gauge showed between 1/2 and 3/4 of a tank of gas.
The last thing I done to this truck was install a new fuel filter and replaced the two rubber hoses on the fuel filter.
Any suggestions?
 
  #2  
Old 03-26-2019, 08:24 AM
RalphP
RalphP is online now
Champion
Join Date: Jan 2013
Location: Northwest Louisiana
Posts: 2,843
Default

Check all vacuum lines.

Check your idle kicker.

Check the throttle return spring (from the throttle body to the bracket at the front of the motor).

RwP
 
  #3  
Old 03-26-2019, 09:16 AM
Josh89Griffin's Avatar
Josh89Griffin
Josh89Griffin is offline
Professional
Thread Starter
Join Date: Apr 2017
Location: South Georgia
Posts: 167
Default

Thanks RalphP!
I will check those
Originally Posted by RalphP View Post
Check all vacuum lines.

Check your idle kicker.

Check the throttle return spring (from the throttle body to the bracket at the front of the motor).

RwP
 
  #4  
Old 03-28-2019, 07:58 PM
Blue Moon
Blue Moon is offline
Registered User
Join Date: Sep 2017
Location: Calgary, AB
Posts: 24
Default

[QUOTE=Josh89Griffin;3433253]Thanks RalphP!
I will check those[

Keep us updated. Good luck
 
  #5  
Old 04-16-2019, 10:07 PM
Josh89Griffin's Avatar
Josh89Griffin
Josh89Griffin is offline
Professional
Thread Starter
Join Date: Apr 2017
Location: South Georgia
Posts: 167
Default

I did need up replacing a missing vacuum line from the front of the throttle body to the air filter. A friend & I replaced the IAC last year & used a tachometer to set the screw. While in idle, the truck revs up & goes back down as if it’s about to die, but if I push the gas pedal, the truck makes a loud shrill noise.
My next concern is, should I replace the intake manifold gasket?
 
  #6  
Old 04-16-2019, 10:13 PM
RalphP
RalphP is online now
Champion
Join Date: Jan 2013
Location: Northwest Louisiana
Posts: 2,843
Default

Did you do the "Pull the ETC sensor" first, as per the manual?

Typically, idle hunt like that is caused by a vacuum leak. The loud shrill noise should help you locate it.

RwP
 
  #7  
Old 04-16-2019, 10:29 PM
Josh89Griffin's Avatar
Josh89Griffin
Josh89Griffin is offline
Professional
Thread Starter
Join Date: Apr 2017
Location: South Georgia
Posts: 167
Default

ETC sensor?!
Originally Posted by RalphP View Post
Did you do the "Pull the ETC sensor" first, as per the manual?

Typically, idle hunt like that is caused by a vacuum leak. The loud shrill noise should help you locate it.

RwP
 
  #8  
Old 04-16-2019, 11:25 PM
RalphP
RalphP is online now
Champion
Join Date: Jan 2013
Location: Northwest Louisiana
Posts: 2,843
Default

ECT - sorry. Engine Coolant Temperature sensor. You're supposed to disconnect it, which causes the ECU to pull all timing. There's a sequence to it, covered in the FSM.

RwP
 
  #9  
Old 04-17-2019, 10:49 AM
Josh89Griffin's Avatar
Josh89Griffin
Josh89Griffin is offline
Professional
Thread Starter
Join Date: Apr 2017
Location: South Georgia
Posts: 167
Default

I figured that's what you meant. Here are two pictures from the 1988 Dakota Service Manual from Chrysler Motors says:


Originally Posted by RalphP View Post
ECT - sorry. Engine Coolant Temperature sensor. You're supposed to disconnect it, which causes the ECU to pull all timing. There's a sequence to it, covered in the FSM.

RwP
 
  #10  
Old 04-17-2019, 12:14 PM
RalphP
RalphP is online now
Champion
Join Date: Jan 2013
Location: Northwest Louisiana
Posts: 2,843
Default

Yep, that's the method.

One more thing. On my truck, when it starts squealing, it's been the A.I.R. (smog) pump failing; be sure to check that.

RwP
 

Thread Tools
Search this Thread
Quick Reply: Truck died while at the stop sign. 88 Dakota 3.9 V6 automatic


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: