93-98 T100s All T100 trucks

At a loss on 96 T100 rough running

Thread Tools
 
Search this Thread
 
Old 05-11-2012, 05:13 PM
  #21  
Registered User
Thread Starter
 
dave_dj1's Avatar
 
Join Date: May 2012
Posts: 26
Likes: 0
Received 1 Like on 1 Post
Kool, headin' to youtube now
thanks,
dave
Old 05-12-2012, 10:16 AM
  #22  
Registered User
 
BamZipPow's Avatar
 
Join Date: Feb 2007
Posts: 454
Received 0 Likes on 0 Posts
Weak fuel pump diagnosis...
http://www.youtube.com/watch?v=6buEFTj1POE

Check valve in the fuel pump diagnosis...
http://www.youtube.com/watch?v=Bmw6b76smPQ

There isn't a fuel pressure test port on the T-100 fuel system. Yer gonna have to install yer own using some fittings. Here's my thread on what I found out on the fuel pressure adapters...
http://www.toyotanation.com/forum/60...ure-gauge.html
Old 05-12-2012, 11:13 PM
  #23  
Registered User
 
Flannelman's Avatar
 
Join Date: May 2005
Location: Grand Forks, ND
Posts: 68
Likes: 0
Received 0 Likes on 0 Posts
When I had mine it had rough running when accelerating when cold; I had the fuel injection system cleaned and that took care of it. It seems that these engines need the injectors gone thru sometime after 100k to keep them running really good.
Old 05-15-2012, 02:57 AM
  #24  
Registered User
Thread Starter
 
dave_dj1's Avatar
 
Join Date: May 2012
Posts: 26
Likes: 0
Received 1 Like on 1 Post
Well I finally got the plates and took it for a test drive, put some gas in her and all seems well so far. I do have one issue with a tail light, I need the short harness from the main one to the light itself.
Old 05-15-2012, 09:43 AM
  #25  
Registered User
 
BamZipPow's Avatar
 
Join Date: Feb 2007
Posts: 454
Received 0 Likes on 0 Posts
Both or just one particular side?

81565
socket & wire sub-assy, rear combination lamp, lh
81555‑34010
1
$31.95

81555
socket & wire sub-assy, rear combination lamp, rh
81555‑34010
1
$31.95
Old 05-15-2012, 01:01 PM
  #26  
Registered User
Thread Starter
 
dave_dj1's Avatar
 
Join Date: May 2012
Posts: 26
Likes: 0
Received 1 Like on 1 Post
Bam, thanks for posting the part numbers. Turns out only one terminal was corroded to the point of being gone so I cut the wires and added a short wire to go around the plug.
Put about 50 miles on her today and all seems well
Old 05-15-2012, 04:12 PM
  #27  
Registered User
 
ksea's Avatar
 
Join Date: May 2012
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
rough running

check your spark plug wires. I had the same problem and the spark was grounding out on the engine and jumping over to other wires causing some
spark misfires and incorrect fire times.

replaced the wires and it ran smooth
Old 05-15-2012, 04:49 PM
  #28  
Registered User
 
250000_yota's Avatar
 
Join Date: Sep 2007
Location: Longmont, CO
Posts: 919
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by ksea
check your spark plug wires. I had the same problem and the spark was grounding out on the engine and jumping over to other wires causing some
spark misfires and incorrect fire times.

replaced the wires and it ran smooth
Read the thread before you post. Issue was already covered.

OP, have you had a chance to look into the fuel pump yet? I know the issue seems to have been mostly fixed but I'm still curious. My little bro (98_3RZ) lost a pump on his 2000 taco. That was one of two I've seen lose pumps. From my experience I've never really seen fuel pump problems in toyotas.
Old 05-19-2012, 03:58 PM
  #29  
Registered User
Thread Starter
 
dave_dj1's Avatar
 
Join Date: May 2012
Posts: 26
Likes: 0
Received 1 Like on 1 Post
I haven't had time (or the want) to look into the fuel pump yet.
I have put just over 300 miles on it in the past week and so far so good!
It still falls flat at about 4k but I'm thinking TPS, we checked the ohms and it was kind of funky. The truck starts right up, goes down the highway great but if you punch it and the tach climbs to 4k it's like it hits the rev limiter. I'm wondering if the TPS has a problem at WOT. If I could find a known good one and try it I wouldn't mind spending the 100 bucks or so for one. Maybe I'll shop around and see what's available.
Would you trust one from a junk yard?
thanks,
dave
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Sleaker
86-95 Trucks & 4Runners
17
08-26-2020 06:03 AM
Eggslinger
86-95 Trucks & 4Runners
22
06-08-2019 03:32 PM
GreatLakesGuy
The Classifieds GraveYard
8
09-04-2015 09:27 AM
taller1
93-98 T100s
3
07-16-2015 03:00 PM
karbin
Newbie Tech Section
1
07-05-2015 11:37 PM



Quick Reply: At a loss on 96 T100 rough running



All times are GMT -8. The time now is 06:22 PM.