Question1995 Rodeo Isuzu 2.6 4 cylinder, Manual Transmission, 2 Wheel Drive, 180,000 miles
Had two problems.
Battery was not charging, so I replaced the alternator with a remanufactured one from autozone. This fixed the problem and I confirmed that it was working by starting the motor and measuring the voltage at the battery at 14.5 volts. At this point I was working on a second problem, which is the engine would bogg down when you accelerate. So I was re-adjusting the TPS, replaced the MASS AIR FLOW sensor (and cable, because the connector on the old one had become so bad that it needed to be replaced), and at the same time I was charging the battery, that was low due to the alternator being bad. Once I was done with these tasks I tried to start the engine, but it wouldn’t start. I started to investigate and found that I wasn’t getting spark to the spark plugs. I decided to replace the ignition coil, but still no spark. Upon further investigation I found that I also didn’t have normal voltage readings at the M AP, MAF. I checked all of my fuses and relays and fusible links and they all appear to be good. The only other information that I have is the blower, AC, and charge fuse circuits appear to be dead, both with the ignition on and off (not sure if engine needs to be running). I tried to trace through the schematics, but still no luck. Could this be the ECM or is there something else that I am missing?
AnswerWarren, it sounds like you need a match and a gas can. LOL, no it sounds like your P.C.M is going out, also do not try and recharge a drained battery, it only destroys your new alternator and will just waste your time by draining down again and putting you on the nike express. Also, your bogging down means your fuel system or exhasut system is in need of maintenance, try checking this and let me know how it goes ok? Sorry, Also check your main wiring harness engine ground, rodeo's and troopers are horrible for this coming loose and wreaking havoc on your electrical system.
