![]() |
![]() |
Search | Car Forums | Gallery | Articles | Helper | AF 350Z | IgorSushko.com | Corporate |
![]() | ![]() | ||
![]() | ![]() |
| Latest | 0 Rplys |
|
![]() |
![]() ![]() ![]() |
|
Thread Tools |
![]() |
#1 | |
AF Newbie
Join Date: Jul 2004
Location: Bloomington, Indiana
Posts: 19
Thanks: 0
Thanked 0 Times in 0 Posts
|
1999 Rodeo, surging idle
No instrument codes generated. Shop sprayed for IMG leak, hooked up the computer and all reads fine but still surging. Unhooked the power steering sensor with no change. I'm thinking TPS or IMG. Thinking of changing both, opinions?
Thanks, Dwight |
|
![]() |
![]() |
![]() |
#2 | |
Isuzu Guy
![]() Join Date: Jan 2004
Location: Madison, Wisconsin
Posts: 3,386
Thanks: 2
Thanked 29 Times in 23 Posts
|
Re: 1999 Rodeo, surging idle
The butterfly in the throttle body could be carboned up.
The 1st my IMG went I had no codes, and the RPM would jump up and down only like 50-100 RPM while sitting at a light. I took it in and then said the IMG was cracked. typically if it is surging and you all other things are in order the IMG is cracked....
__________________
-Ryan Isuzu Moderator Car Show Tips Operations manager with a results-driven passion for process improvement FAQ 98-04 Isuzu Rodeo, Rodeo Sport, Amigo, Trooper SOLD - NOV2015 - 2000 Amigo, V6, HT winter, ST summer, 2wd |
|
![]() |
![]() |
![]() |
#3 | |
AF Newbie
Thread starter
Join Date: Jul 2004
Location: Bloomington, Indiana
Posts: 19
Thanks: 0
Thanked 0 Times in 0 Posts
|
Re: 1999 Rodeo, surging idle
Thanks Ryan, they are going to change the IMG (at my insistence), we'll see. I also suggested cleaning the butterfly.
Dwight |
|
![]() |
![]() |
![]() |
#4 | |
AF Newbie
Thread starter
Join Date: Jul 2004
Location: Bloomington, Indiana
Posts: 19
Thanks: 0
Thanked 0 Times in 0 Posts
|
Re: 1999 Rodeo, surging idle
New IMG, new IAC, new TPS, cleaned Throttle Body, still surging... Any other ideas?
|
|
![]() |
![]() |
![]() |
#5 | |
Isuzu Guy
![]() Join Date: Jan 2004
Location: Madison, Wisconsin
Posts: 3,386
Thanks: 2
Thanked 29 Times in 23 Posts
|
Re: 1999 Rodeo, surging idle
Weak electrical system? dieing battery? poor ground? dieing alt?
__________________
-Ryan Isuzu Moderator Car Show Tips Operations manager with a results-driven passion for process improvement FAQ 98-04 Isuzu Rodeo, Rodeo Sport, Amigo, Trooper SOLD - NOV2015 - 2000 Amigo, V6, HT winter, ST summer, 2wd |
|
![]() |
![]() |
![]() |
#6 | |
AF Newbie
Thread starter
Join Date: Jul 2004
Location: Bloomington, Indiana
Posts: 19
Thanks: 0
Thanked 0 Times in 0 Posts
|
Re: 1999 Rodeo, surging idle
Going to check those out this week (been out of town since my last post).
Talked to an Isuzu tech who also suggested it could be a stretched timing belt (I'm the second owner, 130k, guessing that the previous owner did not change the belt at 90K). Any thoughts on this? Good news is that the IMG they installed is a newer design with solid metal around all the openings rather than the simple sandwich design of the previous ones. |
|
![]() |
![]() |
![]() |
#7 | |
AF Enthusiast
![]() Join Date: Jul 2007
Location: Cape Coral, Florida
Posts: 571
Thanks: 0
Thanked 0 Times in 0 Posts
|
Re: 1999 Rodeo, surging idle
Ask if they used an OEM TPS. I have not had luck with aftermarket when this problem creeps up. When the TPS is the issue, the scanner shows that the TPS is reading high when surging. There is no code, but the live data for the TPS is altered.
__________________
'97 Rodeo LS 4X2 Dueler Alenzas 4L-30E 200K '96 Jetta 249K '97 TJ 156K '02 VW Cabrio 70K '03 E46 107K |
|
![]() |
![]() |
![]() |
#8 | |
AF Newbie
Thread starter
Join Date: Jul 2004
Location: Bloomington, Indiana
Posts: 19
Thanks: 0
Thanked 0 Times in 0 Posts
|
Re: 1999 Rodeo, surging idle
Scanner data showed normal. Was getting ready to have the timimg belt changed when the surging stopped. Has been running normally for the past week & a half. Weird.
Thanks for all the replies. |
|
![]() |
![]() |
![]() |
#9 | |
AF Newbie
Thread starter
Join Date: Jul 2004
Location: Bloomington, Indiana
Posts: 19
Thanks: 0
Thanked 0 Times in 0 Posts
|
Re: 1999 Rodeo, surging idle
Ok, this has now become an intermittent problem, maybe about 5% of the time, otherwise runs normally. Any other thoughts on causes that would not throw a code?
|
|
![]() |
![]() |
![]() |
#10 | |
AF Newbie
Join Date: Nov 2003
Posts: 18
Thanks: 1
Thanked 0 Times in 0 Posts
|
Re: 1999 Rodeo, surging idle
@jikchung Did you ever resolve this problem?
I just bought a 2002 and am now experiencing same problem. Throttle varies at stop light when transmission is in drive, and it also 'pulses' when driving around 20 - 25 mph (the engine fluctuates between 1300 & 1700 RPM, causing the vehicle to surge.) Also when stopping with the vehicle still in drive, foot on break, no contact with accelerator, the vehicle seems to strain forward, the idle increases, then the vehicle lunges and stops. The sensation is as if the transmission does not shift in to a neutral state until the car surges forward then the forward force ceases. This does not happen as much when the car is hot. I just cleaned the throttle intake. Any suggestions on other areas needing attention? EGR valve? etc? Thanks. |
|
![]() |
![]() |
![]() |
#11 | |
AF Newbie
Join Date: Oct 2011
Location: Plant City, Florida
Posts: 2
Thanks: 1
Thanked 0 Times in 0 Posts
|
Re: 1999 Rodeo, surging idle
I have been having the almost same issue. p0133 b1s1 but its like surging under light throttle but when you get on it clears up. #3 misfire intermit. then now misfire. surge really bad under light acc. Seems like it might be a spot on TPS. Sitting at idle runs great. Its acting like fuel starvation but change fuel filter and pum is pumping good. Any ideas?
|
|
![]() |
![]() |
![]() |
#12 | |
Isuzu Guy
![]() Join Date: Jan 2004
Location: Madison, Wisconsin
Posts: 3,386
Thanks: 2
Thanked 29 Times in 23 Posts
|
Re: 1999 Rodeo, surging idle
you could move the coil (#3) to another location to see if the coil is weak.
The common problem is the intake manifold gasket going bad (It seems like they last about 50k).
__________________
-Ryan Isuzu Moderator Car Show Tips Operations manager with a results-driven passion for process improvement FAQ 98-04 Isuzu Rodeo, Rodeo Sport, Amigo, Trooper SOLD - NOV2015 - 2000 Amigo, V6, HT winter, ST summer, 2wd |
|
![]() |
![]() |
The Following User Says Thank You to amigo-2k For This Useful Post: |
joshua2836 (10-24-2011)
|
![]() |
#13 | |
AF Newbie
Join Date: Oct 2011
Location: Plant City, Florida
Posts: 2
Thanks: 1
Thanked 0 Times in 0 Posts
|
Re: 1999 Rodeo, surging idle
Thx bro tryed the coils all cyl hitting today. Think im gonna go the intake gasket way. Thx for the input
|
|
![]() |
![]() |
|
![]() |
POST REPLY TO THIS THREAD |
![]() |
|
|