Hello, I'm a new member. My dad does forums a lot for his Internationals, so I thought I'd give it a try too.
I purchased a 94 Isuzu trooper over the summer at about 150K and now have 158K on it. Recently I have been getting a check engine light that comes on intermittently. It first occurred after driving HWY for about 1.5 hrs, but than did not show itself for another month or so. Primarily my driving has been in-town for less than 2 hrs at a time. More recently I've noted that the light has been coming on more frequently. It is on while driving, and goes off when I am idling at a light. Additionally, my gas mileage efficency had dramatically decreased. Please advise on what you suspect may be the issue.
Also, I am due for an oil change very soon, but the pressure gauge maintains itself from 30-55 lbs/pressure. I have noted that reading the dipstick is difficult for me as the color of the stick is too close to the color of the oil...
And for another bit of advice seeking, my Trooper is also due for a Transmission flush. I've been warned about that though because I've been told that putting 'clean' fluid into an older transmission can cause failures. Is this true? And, if so, what would you suggest I do for my flush?
I am looking forward to anything that one might have to say.
Thanks for reading!