1994 Bravada difficult shifting

[mrhorn110]

My 1994 has 201K miles on it. I changed filter and fluid 60 days ago.

The other day I noticed it started to experience a hard time shifting from second to third during a casual acceleration. The first shift seems normal, then the second shift struggles to find the next gear. Once it shifts, everything functions normally. The symptoms could be explained as a stumble and sudden loss of power and then an instant acceleration when it does shift.

The real strange thing is that if you are at a stop and real get on the pedal it seems to shift properly without any issues.

Downshifting seems find and operating normally.

Any ideas on things to check?

Thanks.

[Chris Stewart]

Congrats on your 201K. That's reliable proof of your faithfull attention to proper maintenence and care. If you bought it new, you'll get your $30G's out of it with that kind of dedication. I figure 300K will be 10 cents a mile and a fair value.
The motor stumble kinda indicates a miss during a fuel "lean" condition which dissappears when you get aggressive with the throttle during the fuel "not lean" condition. A leaky EGR valve will lean out your already lean condition too. How long since your last tune-up...wires & plugs and such?

[mrhorn110]

I was thinking the exact same thing as I was browsing ALLDATA today (i.e. fuel issue and not tranny issue)

Plugs and wires 50K miles ago. Pulled a used EGR off of a Chevy Blazer about 6 months ago when mine wouldn't stop setting codes (32). I also put in the gasket with the screen in when installing it (what a moment of brilliance from the guy who invented that piece).

I put in a new CPI octopus about 3 months ago. I have had problems with the switch connector outside of the plenum which hooks the wires heading to the octopus. By wiggling them, I was able to get the engine to quit. I am out of electrical grease in my garage so I will pick some up tomorrow and clean all the connections and put some grease in them and reconnect to see if that fixes the issue.

[Chris Stewart]

The EGR on my '92 will stick due to stuff on the plug valve stem. By working the plug valve, mine eventually frees up and lasts quite a while.
Your injector wire find is good work, hope that solves your problem...I'm adding that to my bag of tricks :>)
I recently checked the timing chain on my '92 because of the milage and no other reason, 177K , and found it to still be in good shape but replaced it anyway. It was a steel chain & steel gear. The balance shaft gears were in great shape too.

Slick 50 at 64K + 1 cup added to Kendall High Perf. ever since.