Engine idling rough. hearing a pinging noise when idling. problem is intermittent but seems to worsen as gas tank gets around 1/4 full. any suggestions or ideas? recently replaced fuel pump and fuel filter. truck is driving better but still intermittently stalls and fails to accelerate at lower speeds
Sounds like you have water in the fuel, put in a some dry gas and let it sit over night then drive it the next day to see if it improves
SOURCE: 2001 Isuzu Rodeo Sport V6 cuts oof
There are 3 major issues with the V6 Rodeo. The intake manifold gaskets leak. The drive by wire sensor on the gas pedal goes bad and makes it stall or run at just idle (light will come on). And your problem is the wiring harness to the motor. Get under while it is running (best to do on lift) grab the harness and shake it and pull it. Engine will probably die. Sometimes taking plug apart and using electrical contact cleaner on it will work, sometimes a stick of dynamite will cure all the issues with these. My son was almost killed three times in his 2001.
SOURCE: engine light was on and engine idles rough.
these O2 sensors are cat convertor check sensors. id be checking cat convertors and hopefully you should try replacing if not all ready is the front bank 2, O2 sensor
if you have scanner can you see fuel trims in data display to confirm high fuel trim only on bank 2 either +-5 or more indicates problem and if bank 2 sensor 2 has fixed high 700mv reading cat no good(warm idling)
SOURCE: 991 Isuzu 2.6l petrol runninf problem!
I realise you have probably solved this problem by now so sorry for the late news mate . Had a similar prob and it turned out to be an alternator malfunction . I replace the brushes and off she went . These things send voltage from the alt . to a fuel pump relay or whatever so the pump wont run if the eng isn't (or the alt isn't outputting any voltage.) . Hope you already had it sorted . But I hope this helps if not . Cheers Simon .
SOURCE: 1991 Isuzu Trooper. Recently my truck simply
Disconnect the fuel line at the fuel filter. Turn the car on for the pump to be on. If you are getting gas pumped out, then your pump is good. If not there's most likely your problem. Then try the line at the engine. Disconnect and see if the gas is making it that far. Your should also be able to hear the pump come on if you open the gas cap and listen while someone turns the key to the on position.
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