Quote:
Originally Posted by djnolan
Books have been written on this. I would learn to troubleshoot, and buy the tools such as a multi meter, fuel/vacuum tester. Many of the parts will work fine for decades. It's the seals and rubber items that will get you more times than not. Always replace any rubber items while you are in there. The electrical and vacuum stuff is fairly reliable in my opinion.
I only got stopped cold a few times in 10 years, once for a radiator hose and another from a leaking fuel injector body and another from a leaking fuel line. You do know about the timing belt?
|
I'm glad you've had such good luck over the years. I've kept cars running well into the low 300k miles with even fewer problems. This car is a rust-free 924S that is pretty straight but suffered under the ownership of an idiot that abused the poor thing. It was a shame to let it go to the boneyard and I wanted to bring it back to life. Almost nothing worked and it was the perfect example of everything that goes wrong on the 924-944 models.
Yes, timing belts listed in the parts already replaced in my initial post as was the fuel filter. I've replaced a lot of other parts that I didn't think were germane to this problem. Have all the tools. Also have complete manuals for the car. Understand hoses and rubber. Worked on a lot of cars for decades. I don't consider a car old until it hits the quarter-million mark.
My initial post was focused on the narrow range that the engine acts up and why it's sporadic. Curious what your troubleshooting guide says about loss of power only in high second gear and third gear above 2000 RPM but good power otherwise. I haven't found anything about that yet which was why I posted the request for help.
It seems like it should do what it's doing up and down the rev range if it's a failure of the common parts or low fuel pressure. Thought I might get more precise guidance. Perhaps my description wasn't precise enough to get that. "Consumables" include rubber and hoses in my vernacular. But it could also include the fuel pump and regulator which can fail in a 33 year old car and are hard to test for sporadic behavior. I've had them fail in much younger cars with well-made parts.
I hope that helps get us closer to a solution.