Engine/Trans issues
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Engine/Trans issues
Hey guys! I'm new here and I have a lot of questions but I'll try to keep my posts short as possible. I just have bought a 1990 f150 xlt lariat with 302 5.0 engine. Not 100% sure what transmission is in it but it is an aod (no od button) It has PRNODD1. The pan has 14 bolts, and has RF E90P 7006AA. Door jam says trans type T? My biggest issue right now is that the truck seems to upshift way too soon. The guy that had it before me had the TV cable rigged with zip ties and a spring so I bought a new one but even though I followed instructions to adjust it its still not right. Shift points are 20 mph, 35, and 55 mph. Depending on how far pedal is pressed it can vary slightly. Also I have noticed it shift at 18 mph then again at about 25, 35. Once it hits 2nd and 3rd that's it. It bogs down unless I floor it then it kicks down and shifts back up and bogs again. It's way worse under light throttle on backroads. I'm having engine issues I'd like to talk about later too. Thanks for any help!
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Can someone please help me with this one? I would really appreciate it! My engine issues are that at startup it idles up and down from 750 rpm to 1100 and it's a cycle til it's warmed up. Truck has a miss and kind of runs rough especially when cold. On up hills it wants to bog down and I am getting codes 15 (keep alive memory), 41 lean right side 02 sensor (guy that had it before me put headers and flow masters on it and cut the 02 sensor's completely out. I was getting code 33 intake vacuum leak but it disappeared. The terminals under distributor cap are pitted some so I plan on replacing that soon. I also changed pcv valve, air intake temp sensor, tps. FPR vacuum line smells of gas. Have 2 header bolts, (1 on each side)broke off into engine so I'm sure I have exhaust leak as well. The water temp doesnt even make it to the N in normal. It stays closer to cold. Thanks guys sorry for the long post.
Last edited by Ckn087; 11-17-2017 at 11:41 AM. Reason: Left something out