Hello, my 95 4runner just had it's engine swapped w a used engine. Since the swap, I've noticed several problems that need attention and am looking for advice b4 I bring it back to my mechanic, who just seems he wants to wash his hands of everything and says its running fine. When I got it back, it has a pretty good tranny leak from the front differential, which he felt a bottle of tran stop leak would fix, but hasn't. I'd like to avoid replacing the tranny if possible but perhaps as you hear more symptoms u may think this is related. When the car is first run, after warming up in driveway, my brake light will go on and off, but stays off after a few miles. On the days where it goes off and on, and sometimes when it doesnt, the car has no pickup whatsoever. U can get that engine up to 4500rpm w/o much actual acceleration at all. Not good on the highway going up a steep incline. Also, when traveling between about 1700-2200rpm the engine will buck like crazy unless I lay off the gas and pick it back up again. And most important to me, i've lost about 6mpg which equates to about 100+miles less on a tank. Known problems are the differential leak as mentioned b4, no back o2sensor, downstream of the converter, and lastly maybe its as simple as switching the spark plugs, since I just had them changed prior to switch, he was gonna put them into the swapped engine but saw that it had titanium plugs that he said should b good 4 100,000mi. I'm hoping it's as simple as the plugs, maybe gapped wrong, but i'd appreciate any imput you may have, could plugs really affect my mpg like that?
have the same problem?
Sunday, November 30th, 2008 AT 3:35 PM