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Temps in January plummeted below freezing here in augusta ga. !993 Isuzu Trooper, 3.2 single cam. It cranked that first frozen morning, 10 degrees F. But I did not let it run. I went back out an hour later and it turned over but would not crank. I let it sit a couple of days hoping it would "thaw out" and crank. Nope! My mechanic checked the plugs and changed them and it cranked. He took it to his shop. When I got it back he had changed the MAF sensor. I drove it a number of days then one day after shopping I came out and it would not crank. I had it towed. The mechanic got to it an hour after that, so almost 2 hrs later and it cranked. It did it again and this time he kept it a couple of days and replaced the cranking sensor. Oh, and the truck has over 250, 000, drove great all this time and does not rattle nor smoke. She is always serviced timely too. So then less than a week after crank sensor deal she does this again, won't crank after being driven somewhere. She would not do it once she got towed to the shop. I kept it til it cut off again and then I drove it a long ways THEN took it to the shop hoping it would NOT crank while it was at the mechanic's shop so he could get a code on the computer. Well, it wouldn't crank and he first shot it up with starter fluid. She coughed and sputtered but cranked. We replaced the fuel pump. It was 21 years old so why not? Yet again it cut off to the point we agreed to just expect it to when we had to go to the store or work. Now three days ago she had a new symptom. We cranked her up, turned on the AC and just sat. We never just sit. After about 10 minutes she cut off. NEW problem. The yesterday, the icing on the cake. I was driving her to the bank and when I went to change from second to third gear, I accelerated and she began to choke up, so I dropped it back into second and got to the hill to try to make it back over the bridge towards the shop. After this turn it didn't matter which gear, she would try to choke and once we got on even road she choked more until we got to the shop driveway and she cut off. My mechanic had said before this it may be the ECM so I have been anticipating the Trooper dying like this. To date we have replaced plugs, cranking sensor, MAF sensor, ignition module, fuel pump and filter, reset the computer, and he pulled the computer yesterday, called me and told me to give him some time cause it may not be the computer. All I know is that something is getting hot and is keeping her from cranking. Yesterday, turning off like that when I accelerated...I have no idea. He said it can still be the computer. What has me puzzled is what could he have seen when he pulled the computer to make him now think it is something else shorting out??? Do any of you have an answer to this? She is a good ride and I am worried. Thanks!!
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