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1989 Dodge D100

PlumCrazy4Mopar

PlumCrazy4Mopar

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Joined
Nov 25, 2012
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Location
Federalsburg, Md.
Awhile back I posted that this truck was posting a code 23. I have not figured out this issue except to know there is not unit in the hole on the throttle body. Nor is there a wiring connector in that vicinity. I have a temporary tag on the truck with an appointment for inspection on Monday. While test driving the truck it sounds like something has a failing bearing. Sounds like an irate cricket on the passenger side of the engine while driving the truck. The next issue is when you park and turn the truck off it does not want to restart for several minutes. After a good warm up while driving it hesitates like the accelerator pump is bad. As it has a throttle body I know that is not the issue. Also when you hard accelerate it bogs down.
Any suggestions would be appreciated. Thank you!
 
Code 23 is for the Intake air temp sensor, google it and you should be to find info to check it out. The cricket sound you hear could be a u-joint that's dry and squeaking, it would need replacement.
The hot restart problem could be a spark issue, you need to get it to act up and see what is missing.
 
Yes, but the 89 did not have that part on the throttle body. The hole is there, open with no plug. There is also no wire running to the area. I can check the u joints, but it sounds like it is coming from the right bank while sitting in the drivers seat. I posted awhile back on Allpar.com. I found out there that the 89 V8 had the throttle body temperature sensor, but not the V6. I need to determine if the pcm was changed for a V8 unit to determine the issue there. Thanks again for your help.
 
I can check my 89 throttle body tomorrow to see what it has there. I know it at least has a position sensor. I think the temp sensor was in the intake in 89 but not positive. As to the bog down has the engine vacuum been checked. If you had access to an OBD scanner this would be a lot easier to diagnose throw live engine data. Its possible for some reason timing is not advancing. There should be a test port in the engine compartment but not OBDII compliant.
 
I disconnected the coolant temperature sensor and set the timing to 12 degrees advanced. Once the temperature sensor was plugged back in the timing was at 17 degrees advanced. I am going to go to the inspection and on payday do a complete tune up. Can anyone tell me what the correct timing is if not 12? I have been out of the loop since I left the dealership in 1990 due to a back injury. I am sure that I have forgotten more than I remember.
The PCM has definitely been replaced as it reads "Remanufactured" on the label. There is an R in the number making it 8 digits. This may be because it is a remanufactured part. Otherwise the number is 4379887. I am not sure of the six cylinder number.
 
I only know what has been read and tried. The experience has been timing will go to were the computer wants it to be. It does have to run before timing is moved. Also have never found anything that stated what timing to start with on the 89 engine. I hope you have not forgotten to much as I would sure like to put the fuel injection back on the 89 engine. Adapting the 82 system was simpler at the time the engine went into the 82 D350 and the 89 van harness would not allow putting things in their proper place.
 
Yes I have been there. So your not working on a V8?
On mine I will eventually have to set down and work out the wiring. But right now have not been able to pull it apart and start the changes. It needs to still preform its duties and I an not willing at present to deal with issues that may arise.
 
I hear you. I sold my 91 Cummins 4x4 and have been without a truck for awhile. I miss that truck and am trying to get this one roadworthy. Thanks for your help. Everything is another piece in the puzzle.
 
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