1991 Toyota Pickup 4 cyl.

Reply

  #1  
Old 07-24-02, 03:57 AM
jcpike
Visiting Guest
Posts: n/a
1991 Toyota Pickup 4 cyl.

Re: gas milage.
my pickup,(recently purchased) 4 speed automatic, 119,000 km. is only getting about 18 mpg combined city & highway. This seems low to me, the truck runs fine, except for it idles a little high.
Is there a adjustment to lower the rpms?
What could be causing the low gas milage?
Any help greatly appreciated
Cheers!
John
 
Sponsored Links
  #2  
Old 07-24-02, 05:21 AM
Join Date: Jun 2002
Location: Long Island, NY
Posts: 1,531
Thats around the right mpg, also what exactly to you mean by it idles a little high

Larry
 
  #3  
Old 07-24-02, 05:40 AM
jcpike
Visiting Guest
Posts: n/a
1991 Toyota Truck

Larry,
When the truck is started in the morning (cold) it revs high (say 1500-1800 rpms. no tach) at first, then gradually the rpms lower as the engine warms up.
But it seems to me that it is still idles high (1000rpms)
Hope this makes sense, when I drive the truck, and stop to park it when I put it in park from drive, the engine seems to increase in rpms.(up to approx. 1000)
Thanks
John
 
  #4  
Old 07-24-02, 06:07 AM
Joe_F
Visiting Guest
Posts: n/a
Check the idle air control valve and throttle body for dirt/restrictions. This is a common problem. Make sure the PCV system is working and not clogged if so equipped.
 
  #5  
Old 07-24-02, 07:02 AM
Join Date: Jun 2002
Location: Long Island, NY
Posts: 1,531
Dosen't have an ISC motor, just air bypass valve for high idle when cold. Their is a screw on the top of the throttle body to adjust warm idle speed

Larry
 
Reply

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 Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes