You are here: Forums SUVs Isuzu Trooper Isuzu Trooper Engine Misfire

Isuzu Trooper Engine Misfire

32 messages,  Last post on Jun 01, 2009 at 8:34 AM

You are in the Isuzu Trooper Forum. Your Hosts are steve_ & tidester

What is this discussion about? Isuzu Trooper, Isuzu Trooper II, Electrical, Engine, Exhaust, SUV

Messages Page 3 of 4 1 2 3 4 Prev Next Last

Go To Msg # Search This Discussion

#13 of 32 Re: engine misfire [mdenman1] by steve_ HOST Feb 17, 2008 (7:51 pm)
Replying to: mdenman1 (Feb 17, 2008 7:49 pm) If you go to Forum Profile on the upper right, there's a tab for Change Email/Password.
#14 of 32 Re: engine misfire [landfill] by atfdmike Feb 18, 2008 (3:03 am)
Replying to: landfill (Feb 16, 2008 9:06 pm) A trick that works when you have a sticky boot is to take an air nozzle and blow air into the be while pulling on the boot with a twisting motion. When reinstalling, apply a dielectric grease to the boot end where it fits over the plug. That will insure it does not stick again. Most parts stores have the grease. Early Troopers had the plug tucked behind console where it meets the dash. Carpet may be over it. Later Troopers had it in the LH kick panel behind the trim. Try a search, may help on both questions. Include your year, model and trans when posting, makes it easier to be specific good luck.
#15 of 32 Re: engine misfire [mdenman1] by atfdmike Feb 18, 2008 (3:13 am)
Replying to: mdenman1 (Feb 17, 2008 7:49 pm) The new pack pretty much rules out the coil or wire being the problem. Have you had the codes read.....there are codes that set that don't trigger the CEL to come on. Even a momentary code will generally be stored for a period of time. I am not too familiar with the ignitions setup on the newer trooprs. Try having the codes scanned at a parts store that does it for free to make sure no surprises. If none, check compression on that cylinder and a couple others to see if low compression is problem. Good luck.
#16 of 32 engine misfire by mdenman1 Feb 19, 2008 (4:37 am)
The problem continues, last night i swapped out the coil pack again, and had the cel codes re checked at autozone i had three codes; 1171 (lean mixture during acceleration), 0157 (O2 sensor bank 2 sensor 2) and 0304 (misfire #4 cyclinder) I'm beginning to think i may have a problem with my fuel injector on cyclinder 4. Does anyone have any thoughts, I've no heard of any problems with that part. It doesn't seem that difficult to take off and check, or replace for that matter. The first two codes are a result of a cyclinder misfire, but in my mind the last (0304) could be the root problem and it seems the injector is the only item i haven't replaced yet. Replies to this message: atfdmike (Feb 19, 2008 5:05 am) dravin21 (Mar 15, 2008 9:07 pm)
#17 of 32 Re: engine misfire [mdenman1] by atfdmike Feb 19, 2008 (5:05 am)
Replying to: mdenman1 (Feb 19, 2008 4:37 am) I believe that you can have the fuel injectors tested and cleaned by some auto service places. My only question would be if you are not familiar with them or don't know their reputation, then you may end up with a new set of injectors based on their evaluation when you may only need one. Regardless, injectors do wear out or are damaged and need replacement, so that is definitely a possiblity. Have you done a fuel pressure test to verify that adequate fuel pressure is available? Assuming there is, then a good shop should be able to fix or recommend replacement of the injector. I know they don't come cheap, but you seem to have eliminated most of the common causes. HTH Good luck. Replies to this message: dravin21 (Mar 15, 2008 9:07 pm)
#18 of 32 Re: engine misfire [atfdmike] by dravin21 Mar 15, 2008 (9:07 pm)
Replying to: atfdmike (Feb 19, 2008 5:05 am) if you like offroad asmuch as i do check for bent/dented fuel lines.... i get that alot
#19 of 32 1998 Trooper Misfire by steven56 Aug 10, 2008 (3:46 pm)
I'm having a similar misfire problem with my '98 Trooper. For a few weeks it had an emissions problem which we finally found to be a broken air line above the gas tank. I don't drive it much, since I use a company truck daily, so the battery keeps running down. One day I jumped it with a charger and may have left it too long on "start". The battery was really dead. I had to do the same thing the next day. Then took it into Autozone and they replaced the battery saying it wouldn't hold a charge. They checked the codes then.. Could leaving the charger on start too long have burned out something? Never got the P0300 code until then. After the emissions problem it ran fine until the new battery died and I tried to charge it. It will run, but I used $30.00 of gas in two days just going 26 miles round trip on the weekend. It ran really rough both days, trying to stall all the time. Help, PLEASE!!!??? Replies to this message: steven56 (Aug 16, 2008 9:57 am) steve_ (Aug 16, 2008 10:38 am) landfill (Aug 16, 2008 11:45 am) paisan (Aug 19, 2008 4:21 pm) steven56 (Aug 29, 2008 2:53 pm) and 1 more...
#20 of 32 Re: 1998 Trooper Misfire [steven56] by steven56 Aug 16, 2008 (9:57 am)
Replying to: steven56 (Aug 10, 2008 3:46 pm) RE: msg. 19, Any response to this????? Replies to this message: steve_ (Aug 16, 2008 10:38 am) landfill (Aug 16, 2008 11:45 am) paisan (Aug 19, 2008 4:21 pm) steven56 (Aug 29, 2008 2:53 pm) wlbrown9 (Sep 05, 2008 4:38 pm)
#21 of 32 Re: 1998 Trooper Misfire [steven56] by steve_ HOST Aug 16, 2008 (10:38 am)
Replying to: steven56 (Aug 16, 2008 9:57 am) I had a P0300 on my Nissan a couple of weeks ago and that's a random or multiple misfire. In my case, the knock sensor and some injectors went bad. MPG was poor and it ran real rough too.   Could be a coincidence that your battery went bad too. I'm not enough of a mechanic to begin to tell you where to start troubleshooting. Plugs and wires or the coil maybe?
#22 of 32 Re: 1998 Trooper Misfire [steven56] by landfill Aug 16, 2008 (11:45 am)
Replying to: steven56 (Aug 16, 2008 9:57 am) sounds like the o2 sensor(s), that was the problem with my 92 trooper. i had changed it a few months earlier and that o2 sensor failed....it was putting up black smoke, running rough and using at least twice as much fuel. i replaced the o2 sensor again and it has been running fine ever since. the code for mine was 17, but its the old style computer, the o2 light never came on, neither did the check engine light, but the code was there. after changing the sensor, the codes were clear. i hope the problem with yours is that simple Replies to this message: paisan (Aug 19, 2008 4:21 pm) steven56 (Aug 29, 2008 2:53 pm) wlbrown9 (Sep 05, 2008 4:38 pm)

Messages Page 3 of 4 1 2 3 4 Prev Next Last

Go To Msg # Search This Discussion

You are here: Forums SUVs Isuzu Trooper Isuzu Trooper Engine Misfire