2000 Engine or Tranny issue (1 Viewer)

[gorebug]

This past week I've started to notice a stumble/hesitation/bogging in the engine when gently accelerating from a stop. At first it was so quick to happen that I wasn't sure if it even happened - but I can now reproduce the concern fairly consistently.

No Check engine light has come on.

Transmission feels great otherwise - no issues when shifting or at speed.

I've owned the truck for 2-years (about 20,000 km) and not had any other concern with it. The only item that could possible be related (in my ignorant mind) is that after the battery's been dead or disconnected, the truck will start fine but then I find i need to give it a bunch of gas for a minute or two as it runs rough and will stall if throttle input is removed. After that first start, the truck runs and starts again without protest.

As always, hoping that there is a straightforward and/or inexpensive solution.

 

[PADDO]

Try the inexpensive fixes first, throttle body and MAF clean, air filter, maybe run some BG44 fuel system cleaner through. Are you using your normal gas from the same station? Maybe a bad batch of fuel?

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[OregonLC]

The first start symptoms are a result of learning mode after the ecu is reset. Completely normal.

It's not a transmission issue. If you accelerate more briskly do the problems go away?

 

[gorebug]

Glad to hear that it doesn't sound like a problem to panic over!

Purchased the MAF and throttle body cleaners - hopefully can get everything addressed this weekend.

Thanks for your help!

 

[Muddy Bean]

At some point plugs and coil packs might be checked.

 

[APKhaos]

Check codes. If you don't have an OBDII reader go to the local FLAPS - most of them will read your codes for free. Post codes here.
Plugs may be worn but MAF and TB cleaning are a good first step and pro overdue.

 

[re_guderian]

Sans code, it's touigh to tell WHICH coil pack or plug may be giving you an early warning of failure. You should also just double check tranny fluid level - I think the FAQ has a good method. You really have to run the thing to get tranny temp up to test at "hot". Also, if you have the FSM and a multimeter, you can test the APPS, TPS, and Throttle Control Motor for issues before they fail completely and throw a code. Let me know if you don't have the factory service manual, and I can get you a scan of the diagnostics for the throttle-body components. But by all means, start with a good clean out, or at least peek in and see how dirty it is.

 

[Rot Box]

Mine did that for almost a week before it set off a code for #1 coil pack