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Isuzu Rodeo No Start Stall Idle Problems

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  • bigmac7bigmac7 Posts: 1
    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?
    Please help.
  • gabekgabek Posts: 1
    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
  • kozikowskikozikowski Posts: 19
    edited April 2010
    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.
  • Hey there Im new on here and not a mechanic, but I've seem so solve my 99 Isuzu Rodeo stall and idle problems( so far). First off, after months of my 99 Rodeo stalling while driving and cutting off I was fed up. I noticed the RPM drops when the car stalls. ( When it stalls, it doesnt even rev up, fells like Im in a dead car just press the gas pedal, then it picks up speed for a second the BOOM, stalls again :( I did the carb spray on intake manifold test-no vaccum leaks, I cleaned the pcv valve, cleaned the throttle, new air filter with no results. Next, I cleaned the IAC (idle air control) with carb cleaner and it ran fine for about a day. Last I replace the Fuel Pressure Regulator and then viola!!! its running fine for about 2 weeks. now. It took me about a day to replace it hence im not a mechanic and its located on the fuel at the drivers side firewall. I had to literally remove the whole whole fuel rail( for the 99+ models) which was a real bytch taking off, but easier putting back on. Sorry for the paragraph but I feel I had to tell someone of my triumph lol. I hope this helps.
  • My '94 Rodeo 3.2L has this exact same problem. I cannot figure it out. Looking for more info please. Thx
  • Does/will a bad temperature switch affect fuel injection on 1994 Isuzu Rodeo 3.2L? There appears to be 2, one larger sending unit with a 2 wire connection (plug) and a smaller one with a single wire (blade type) connection. I believe the smaller one controls the temp gage at the dash, which has not been working. I found the tang (connection blade) broken off of the sensor switch. The vehicle has been bogging down and blowing black smoke intermittently after the engine is warm and I am wondering if the temp switch may be the problem. Any help is greatly appreciated, thanks.
  • So my '95 Rodeo is having starting issues. I believe it has to do something with the fuel pump.
    Right now I can start it and it runs fine, but in the past, I have had it die on me while I was driving on the highway. I have replaced the fuel pump with another one from a '96 or a '97 rodeo and when i turn the key to the start position or to the position where it doesn't start the car but turns everything on, the check engine light comes on and I can hear the fuel pump pumping. Once i start it up, the check engine light turns off and it runs fine.
    But every so often, when i turn the key to the on position, the fuel pump wont pump. And it will stay like that for a while. It is quite unreliable and I would like to find out more. I was thinking of just rewiring the fuel pump cause it might be a bad connection but I don't want to have to pull off the fuel tank for the third time.
    Please help. Thanks.
  • dray2ndray2n Posts: 1
    derving2010: I've had all of your problems with my 1999 Rodeo and can not find a solution. I was wondering if yours is still doing good after replacing the fuel pressure regulator?
    Thanks
  • I changed the pcv valve (2.99) and more importantly, the rubber grommet it sits in..buy seperately.. the rubber piece was rotted and not making a good seal. My car has been idling even and not stalling for several days so far so good.. cost me 5 bucks. I am crossing my fingers...
  • Yes. Its been working fine
  • Hi. Just recently my 1995 Rodeo 4WD has started to sputter pretty bad while trying to get up to speed. I changed the plugs/wires, air filter, and fuel filter, but still no change. It seems to happen the worst right around 45 mph. There is a big hole in the exhaust... don't know if that would contribute or not, but please any help would be appreciated.
    Thank You!
  • Having the same issue with 96 Rodeo, 4cyl 2wd. We have tried almost everything including taking it to a transmission shop to see if that could be the issue. They thought that it might be electrical but couldn't find anything, we even changed the computer and everything but the Cadillac converter, PCV valve, and last thing fuel pressure regulator. Have you had any luck finding a solution?
  • sgt_halkasgt_halka Posts: 4
    I have the exact same problem with my '94 Rodeo, 3.2L 2WD Auto. I have done everything that Ben had mentioned + I changed the O2 sensor, which DID help a little bit. Also, you may want to disconnect both battery leads and leave them off for 10 minutes, then reconnect. Sometimes that will reset the computer. Both seemed to help, but only a little. It is still sputtering, just not as bad. Not much help, I know... But take it for what it's worth.
  • bc0135bc0135 Posts: 2
    I have read all of the messages in this forum, and I may have a bad IAC from what I have read. I just bought this Rodeo 4X4 w/V-6. All lights work, and it seems to be getting fuel, but sometimes, hit-and-miss it won't start. At idle it also runs rough (intermittently) as well. It first happened to my wife when she started to take it to get inspected. I came home from work and it started right up. I tried starting it every few days with no problems. I let my step-son use it while his car was in the shop, and yesterday he calls me saying the Rodeo will not start. I drove across town and turned it over. It turns over fine, but acts like it's not getting fire. I pulled the plug wire from the coil pack going to the distributor cap center plug, and just set it next to the coil pack. Had my wife turn it over, and it cranked right up. Coincidence? It still is idling rough, but so far it is starting and running. This weekend I'm going to dig deeper into the problem but I am hoping someone on here may have had this problem with their Rodeo and can steer me in the right direction. I'm a shade-tree mechanic so I know my way around vehicle mechanics, but I don't know much about the foreign cars. Any advice will be appreciated!
  • mrglimmmrglimm Posts: 3
    I just completed changing the Intake Manifold Gaskets, and now it's running like the timing is off... Shuttering/choppy acceleration etc. It seems to have curbed the idle issue, but it's missing somewhere or something. I dont have acccess to the CEL reader until tomorrow. Any ideas?
  • mrglimmmrglimm Posts: 3
    ...nevermind, this was a loose cable to one of the spark plugs.
    IMG replacement and cleaning and it's running like a new truck. It has a little desire to stall when I put it in Park, maybe the EGR valve. I hope this doubles or close to, my fuel mileage, was only getting 200 miles to a tank.
  • asta1asta1 Posts: 2
    I have a 2001 Isuzu Rodeo. Love the vehicle, but the engine has begun to shut down (no sputtering) at random speeds or idling. The dashboard code is: cruise control/check transmition. I've taken it to three mechanics, none of whom could find the problem (the computer apparently is wiping the codes when the engine shuts down.) Transmission has been changed with no effect to the problem.

    Anyone had the same issue? Any advice?

    Thanks.
  • im having a prob with my 04 rodeo, it shuts off every time i stop at a stop sign or light or stop in general, could anyone give me any insight on what might me the problem. im suspecting fuel pump, its not my spark plugs just changed them.
    thx
    Jess
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