Bucking at Low Speed, poor acceleration - Toyota Nation Forum : Toyota Car and Truck Forums


» Auto Insurance
» Featured Product
Advertisement
Wheel & Tire Center

Go Back   Toyota Nation Forum : Toyota Car and Truck Forums > Toyota Truck, SUV and Van Forums > Hilux (Pickup) Forum > 89-95 Toyota Pickup/Hilux

89-95 Toyota Pickup/Hilux Discussion forum for the 89-95 Toyota Pickup/Hilux owners. NEW!

ToyotaNation.com is the premier Toyota Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 07-15-2010, 03:03 PM   #1 (permalink)
New TN User
 
Join Date: May 2010
Location: Kentucky
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
View KevinCro's Photo Gallery
Bucking at Low Speed, poor acceleration

Hello, I have a 1993 Toyota Pickup 4x4 MT 3.0 V6 extended cab. Sometimes when I start down the road when the engine is cold, it wants to buck for about 5 to 10 seconds. It will eventually smooth out. Also I've noticed that when the engine reaches 2500 RPMs it starts to pull really well. It's not a gradual thing, but almost feels like a flooded cylinder kicking in. This only happens on occasion.

Here is what I've done so far:

Replaced Vane Air Flow Meter
Cleaned Throttle body
Inspected and adjusted TPS
checked timing (within spec)
Replaced clutch, pressure plate, pilot bearing, and throw out bearing, and rear main seal
new plugs, wires, distributor and rotor button
replaced PCV valve
new coil
new battery
replaced intake plenum gasket and tested injectors with ohm meter
Replaced fuel filter
Seafoamed engine and fuel system
Tested fuel pressure at the cold star injector (40psi at idle)
Tested engine coolant temp sensor (within spec)
Tested 02 sensor (within spec although I did have a code 21 once but it's never came back on)


I've tried my best to figure this problem out but nothing seems to fix it. Any ideas are good ideas.

Thanks in advance.

Kevin

Last edited by KevinCro; 07-15-2010 at 03:05 PM.
KevinCro is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 11-18-2013, 10:17 PM   #2 (permalink)
New TN User
 
Join Date: Sep 2013
Location: Atlantic Beach, FL
Posts: 18
Thanks: 1
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
View TL697's Photo Gallery
I get this same behavior until my truck warms up to operating temp...
TL697 is offline   Reply With Quote
Old 11-19-2013, 06:45 AM   #3 (permalink)
Cressida nut
 
kamesama980's Avatar
 
Join Date: Jan 2006
Location: Columbus, IN
Posts: 4,104
Gameroom cash: $639795
Thanks: 2
Thanked 271 Times in 258 Posts
Lifetime Supreme Member
Garage
iTrader Score: 0 reviews
View kamesama980's Photo Gallery
Could be a leaking injector or CSI causing a flooded cylinder...

Not sure. I'm not as familiar with the foibles of the 3wheezy
__________________
-Russell
"You don't get to judge me for how I fix what you break"
'94 Pontiac Firebird LT1, T56
'90 Cressida, 7M-GE, M5
'91 Toyota Pickup, 22R-E, M5, 2wd
kamesama980 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Toyota Nation Forum : Toyota Car and Truck Forums > Toyota Truck, SUV and Van Forums > Hilux (Pickup) Forum > 89-95 Toyota Pickup/Hilux

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 09:25 AM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.
ToyotaNation.com is an independent Toyota/Lexus enthusiast website. ToyotaNation.com is not sponsored by or in any way affiliated with Toyota Motor Sales, USA, Inc. The Toyota, Lexus and Scion names and logos are trademarks owned by Toyota Motor Sales, USA, Inc.