Jason Warrum
Newbie
Ok guys and gals. The tinkerer is back. So I had an issue with my 92 Yukon 5.7, it was idling high and then it was shifting funny. Missing shift points/rpm as far as I could tell. Well I took it to a shop just to have diagnosed because I was thinkn vacuum leak somewhere and I couldn’t find one. So shop did diagnostics said no leak, no codes no recent codes and couldn’t find anything obvious. Stated leaning towards a bad PCM. They rrefered me to another shop who specializes in older classic cars. So couple questions…….
1) Are those typical symptoms of a bad PCM?
2) typical cost for new flashed/programmed/ PCM if in fact that’s what it needs? Just average ballpark cost
3) is the PCM just like a plug and play type thing or is this something that’s a legit job to replace
Just tryn to get ahead of whatever I need to to get my truck running like a top…!!! Thanks all!!!!
1) Are those typical symptoms of a bad PCM?
2) typical cost for new flashed/programmed/ PCM if in fact that’s what it needs? Just average ballpark cost
3) is the PCM just like a plug and play type thing or is this something that’s a legit job to replace
Just tryn to get ahead of whatever I need to to get my truck running like a top…!!! Thanks all!!!!