Engine/Transmission (1998.5 - 2002) Rebuild time

[GHoneycutt]

New to the forum, wanted to say hello and ask some advise. I have a 01 Quad cab dulley I bought new and she is just shy of 200,000 miles. I started having problems with it last summer, here is what is going on... . I get the dead pedal when I push hard on the accelerator, or at speed when going up a steep hill. The engine goes to a idle, sometimes it will act as if I am pushing the accelerator slightly and when I press down it goes to an idle again. If I just leave it alone it will clear up after say 20 seconds and take off again unless I press hard again, then it does it all over again. If I baby the accelerator, I can usually make it up to crusing speed with no problem, however it does not go away. Codes from a code reader are: 1689, 1287, 0216, 1690 and 1693. I replaced my VP44 2 years ago, and highly suspect this one is going nuts. I have ordered a Fass ddrp, fuel gauge, MAP sensor, IAT sensor, CPS sensor. I reciently replaced the APPS. The VP44 will be ordered next month. Anything else anybody can think of to replace while I have her tore down? Injectors will be pulled and tested or replaced during this as well. One more thing, I ordered a triple gauge pod, and only bought a fuel pressure gauge, have room for two more, what would be two other things I should monitor?

 

[HBarlow]

I don't believe you need to tear it down or rebuild the motor.

The dead pedal issue is usually caused by a bad APPS or VP-44, in that order. A bad IAT or MAP sensor could be at fault here but your symptoms are not what either of them would produce.

A good mechanic will read this and offer better suggestions than I can.

Install boost and exhaust temp gauges.

 

[Sticks]

The 1689 is a failure to communicate between the ECM and the VP44, 1690 could be/likely is related to the 1689, and the 1287 could be causing both (all code definitions here). You may have an ECM going Tango Uniform, or a wire harness issue. The 216 is 95% of the time dead transfer pump, not necessarily a death code for the VP.

Give us some details on your truck.

Auto or manual.

Any and all after market performance accessories.

Regarding the gauges, Pryo, Fuel Pressure, Boost if you have performance upgrades, or Trans temp gauge if you have an auto (both - 4 gauges - to be fun) The boost and trans temp are more for diagnostic purposes than actual safe engine operation. Pyro and Fuel Pressure are mandatory.

 

[GHoneycutt]

My truck is pretty stock, just starting to tinker with putting aftermarket items on it, such as a Fass. It has a auto transmission. Not going to rebuild the engine, just pull maintenance on her. I figure at 200,000 miles, she's due for a makeover, and I want to get another 200,000 + if I can. Love that truck. I appricite the advise on the gauges, one can never have enough info for troubleshooting.

 

[Sticks]

200k, I'd be surprised if the valves needed adjustment. It's finally getting broke in.

As recommend, disconnect, clean and reconnect the ECM/PCM connections, the VP44 connection, clear the codes and try again. Symptoms fit a failing APPS (rare for them to throw a code until they completely fail) and the existing codes.

Get your FASS installed first, verify you have 10psi+ fuel pressure at wide open throttle then report back with any new or repeat codes.

 

[firefighter_2000]

Welcome

Welcome to the forum. Good luck with your makeover on your truck. If you're ever up in the central arkansas area look me up.

Craig

 

[Vaughn MacKenzie]

Actually a valve adjustment would be a great idea at 200k if not done before, of the 6 CTDs I've owned they all needed a little tweaking to get them all spot-on. They don't seem to set them too precisely from the factory, not good enough for my liking anyway!

 

[Sticks]

Actually a valve adjustment would be a great idea at 200k if not done before, of the 6 CTDs I've owned they all needed a little tweaking to get them all spot-on. They don't seem to set them too precisely from the factory, not good enough for my liking anyway!

Cummins Tolerance is . 005 either side during inspection. Have yet to find one that was out of spec.

 

[SnoKing]

When I had dead pedal and a 216 code, I installed a remanufactured VP44 from MWFI. The year before the dead pedal I had a few cases of extended cranking in hot SW weather. Have not had the code or dead pedal again in 40,000 miles. SNOKING

 

[WestTN]

I'm surprised no one has told you that the 216 code is for a failing VP44.



The entire OBDI code list is available on this site in ther 911 forum.

 

[Vaughn MacKenzie]

Cummins Tolerance is . 005 either side during inspection. Have yet to find one that was out of spec.

and that spec leaves a lot to be desired, that's a very loose tolerance. I think people often misread/misunderstand that spec and believe that anywhere in that range from valve to valve is OK, such as one exhaust valve is at . 015 and another one is at . 025. What matters is adjusting them all very close to each other, somewhere within that spec, +/- . 001-. 002" of each other. For example adjust all your exhaust valves between . 017"-. 019" or between . 022-. 024". The tighter you go the smoother she'll run! It makes a noticeable difference.

My intakes are all set to . 008" and exhausts to . 017" +/- . 001"

 

[Sticks]

and that spec leaves a lot to be desired, that's a very loose tolerance. I think people often misread/misunderstand that spec and believe that anywhere in that range from valve to valve is OK, such as one exhaust valve is at . 015 and another one is at . 025. What matters is adjusting them all very close to each other, somewhere within that spec, +/- . 001-. 002" of each other. For example adjust all your exhaust valves between . 017"-. 019" or between . 022-. 024". The tighter you go the smoother she'll run! It makes a noticeable difference.



My intakes are all set to . 008" and exhausts to . 017" +/- . 001"

I know it's a loose spec, and I always put them right back to . 010 and . 020. Just sayin' never seen one out of spec.

 

[SnoKing]

I'm surprised no one has told you that the 216 code is for a failing VP44.



The entire OBDI code list is available on this site in ther 911 forum.

Look at what I posted right ahead of you. There are those that believe a 216 can be from a lift pump, only to swap the VP44 6 months later to fix a dead pedal issue. If you have cases of dead pedal and 216 you have a failing VP44. If you have just 216 code and no dead pedal, wait a few months. Truck will stop one day or dead pedal will start occuring.



SNOKING