Last post on Nov 18, 2013 at 10:18 AM
You are in the Isuzu Rodeo
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Isuzu Trooper, Isuzu Rodeo
#62 of 102 Re: isuzu ruff idle problems [ivy96]
Jan 19, 2010 (3:10 pm)
Replaced the fuel filter. No change. It cranked for a few sec then quit.
We put the old IAC motor back on but now when testing it it isnt working. Above the IAC motor on the ERG Valve (i think) are several wires. 2 sets of them and they are disconnected from the connectors. The wires (2 sets) are taped together and not connected to the terminals. Been this way since I bought it and never had a problem. It runs to the vaccum. Not sure if this is related.
When we spray starter fluid in the intake, it still wont crank. Its not a fuel issue.
Stuck now- not sure-
#63 of 102 Re: isuzu ruff idle problems [morross1]
Jan 19, 2010 (7:58 pm)
Wow!! Is your Check Engine light on at all? Check your Mass Air Flow sensor, this looks like a square box coming from your air filter, it looks like it's part of the hose itself, but it's not, you'll see hose clamps on either side. Check that, it seems to me that you are having an air intake issue. Also, check all your vacuum hoses and make sure there aren't any holes or rips. Good Luck. I'll look further into it and see if there's anything else that would be causing this problem.
#64 of 102 Re: isuzu ruff idle problems [ivy96]
Jan 19, 2010 (8:34 pm)
Thank you so much for helping. I got a buddy of mine helping thats a mechanic- but we are doing all this from my front yard. I had one mechanic tell me I dont have a mass air flow sensor on this vehicle- something else- i cant remember what it was-
i think it is air intake also- does crankshaft sensor involve that?? or MAP sensor?
will re- convene tomorrow!
Thank you so much!!
#65 of 102 Re: isuzu ruff idle problems [morross1]
Jan 19, 2010 (8:41 pm)
Check engine light is not on. occasioanally when i would drive it would come on- very rare- black smoke from the tail pipe- seemed to run a little rough- but then minutes later- it was fine- no smoke- ran like a champ- no check engine light on-
#66 of 102 Re: isuzu ruff idle problems [morross1]
Jan 19, 2010 (10:39 pm)
Yeah, now I'm almost sure it's air intake! You do have a Mass Air Flow sensor, sorry, but I had mechanics tell me that I needed a new O2 sensor and Catalytic Converter literally 2 weeks after I had replaced them both! I don't trust them all, lol. No offense to your friend, but your Rodeo and mine are only a year apart (mine's a 96), if you have a Chilton guide, you can see it. and your MAP sensor COULD be the problem! I don't know about the crank shaft. Honestly, I am still learning about Isuzu's too. I've had mine for almost a year, but I've had to fix A LOT! Bought it from a shady used car dealer, but my husband and I love working on cars, so we took on the challenge. We learn as we go.
Oh, by the way, if your check engine light is coming on, it's a SMOG issue, that's what that particular "dummy" light is for. Which tells me that you have an air issue for sure. Check your EGR valve. It should be on the other side of your throttle body then your IAC was. You should be able to just clean it out, replace the gasket and see if your car starts. And even if your check engine light is going out, there is still a problem, your engine's computer temporarily corrects or compensates for problems, that's why it goes out, but the longer you go without fixing the problem, the longer the light will stay on and the more often it will come on.
#67 of 102 Re: isuzu ruff idle problems [ivy96]
Jan 21, 2010 (9:27 am)
It cranked twice today for a few seconds then died. I smelled exhaust fumes pretty heavy. I am convinced also that it is air intake. It's not fuel, and unless the spark isnt good, I think it is air intake.
Gotta tow it to the shop now. Been way to long not running. Any other ideas?
I will check Mass Air Flow Sensor
Apr 09, 2010 (12:27 pm)
I have a 1995 isuzu rodeo 2wd v-6 that i put a timing belt on and drove it for about a month, One day it decided not to start so I thought fuel pump must be out. To test my theory I had my son crank it while i sprayed starting fluid in it and it started and kept running. I drove it around the block no problem got back to the house killed it and it would not starty again. I sprayed starting fluid in it and it started right up.
I have replaced the fuel pump. fuel pressure regulator. idle air control. map sensor and the crank sensor. It want start at all now even with starting fluid. I have a Haynes manual and it says that the crank sensor is suppose to produce 2.5 volta ac, The one I have is only producing .3 volts ac and i got another one and it is the same. The brand is a borgwarner. Is it possible that I need to get one from ISUZU?
#69 of 102 SEEMS LIKE ECM IS NOT POWERING MY FUEL P.
Apr 12, 2010 (8:36 am)
HAVE A 93 RODEO 3.2 V6 AND IT SEEMED LIKE MY FUEL PUMP WAS GIVING OUT. SO I REPLACED IT AND THE FILTER. IT RUN GOOD FOR A COUPLE DAYS. THEN IT STARTED TO SEEM LIKE THE FUEL PUMP WAS GIVING OUT AGAIN. SO I REPLACED ALL THE SENSORS AND CHECKED ALL THE RELAYS AND THEY ARE ALL GOOD. SO NOW I AM THINKING IT IS THE ECM. MY FUEL PUMP WORKS AWESOME WHEN I BYPASS FOR POWER. BUT EVERYTHING NEEDS TO GO THROUGH THE ECM TO WORK. RIGHT NOW IT SEEMS LIKE IT WANTS TO START BUT IT WON'T. FUEL IS NOT THERE. I CAN TURN THE KEY AND ONCE I HEAR THE FUEL PUMP I KNOW IT WILL START AND IT DOES. BUT THAT IS A HIT AND MISS. NOW THERE IS NO HIT AND MISS. ALL IT DOES IS MISS AND MY RODEO IS OUT. I CHECKED EVERYTHING BUT THE ECM. COULD THIS BE MY PROBLEM??? WANT SOME INPUT BEFORE I BUY A NEW ECM...THANKS
#71 of 102 2001 Rodeo LS V6 RWD - Rough Idle/Stalls on Cold Start
Apr 26, 2010 (6:58 am)
We purchased this car 2 weeks ago with 150K miles and it seemed to run pretty well, but the last two mornings with a cold engine it ran like garbage. A bit tough to start, and when it did there was a rough idle and some visible exhaust with a a strong odor. When I put it into reverse it hesitated and wanted to stall until I gave it some gas, but it was rough. I turned it off, waited a minute before restarting and it was a bit better...a few minutes of driving and it felt normal. Once the engine is warm I don't have any problem with restarts.
The fuel filter was replaced about 6 months ago, but I was thinking about the MAF or O2 sensors.
Unrelated...but we replaced the OEM shocks with Monroe SensaTrack on Saturday...amazing upgrade in ride quality and handling.