Notices
86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS
Sponsored by:
Sponsored by: DashLynx

thwup thwup thwup... what's wrong?

Thread Tools
 
Search this Thread
 
Old 09-03-2007, 06:58 AM
  #1  
Registered User
Thread Starter
 
JohnStra's Avatar
 
Join Date: Mar 2004
Location: Colorado
Posts: 88
Likes: 0
Received 0 Likes on 0 Posts
thwup thwup thwup... what's wrong?

When I start my truck it sounds like it's hitting on 2 cylinders... thwup thwup thwup. I give it throttle and it eventually smoothes out and runs normal. Once it smoothes out it runs just fine. TPS? Throttle body? Something else?
Thanks for any suggestions!
-john
Old 09-03-2007, 08:03 AM
  #2  
Contributing Member
 
TNRabbit's Avatar
 
Join Date: Apr 2006
Location: TENN Native Languishing in Virginia
Posts: 4,787
Likes: 0
Received 34 Likes on 14 Posts
I'd guess you have a bad spark plug, but I'd do a compression test, pull all the plugs, and also check the injectors. Start from there and let us know what you get...
Old 09-03-2007, 11:24 AM
  #3  
Registered User
 
86tuning's Avatar
 
Join Date: Jul 2007
Location: Vancouver, BC
Posts: 738
Likes: 0
Received 2 Likes on 2 Posts
How is your coolant level?

If you're losing small amounts of coolant, it may be a bad head gasket allowing coolant to leak into a combustion chamber after the truck is shut off.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Steven.m.paulk
86-95 Trucks & 4Runners
4
06-07-2020 10:45 AM
zytra
86-95 Trucks & 4Runners
32
01-24-2019 03:16 PM
primordialbeast117
86-95 Trucks & 4Runners
11
12-19-2015 12:23 PM
Matthew Perez
86-95 Trucks & 4Runners
9
09-28-2015 05:43 PM
charlie_fong
General Vehicle Related Topics (Non Year Related)
0
09-27-2015 10:06 PM



Quick Reply: thwup thwup thwup... what's wrong?



All times are GMT -8. The time now is 05:30 AM.