Weird hard starting issue... - Saab 9000 Bulletin Board - Saabnet.com
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Weird hard starting issue...
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Posted by Goblin [Email] (#2224) [Profile/Gallery] (more from Goblin) on Wed, 29 Sep 2021 13:48:01 Share Post by Email
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So this has happened probably three times over the last couple of years. A long 5 to 8 hour road trip. Pull into the gas station after say 400 MI and the car wants to take two or three times to start. Does that sound like a crank position sensor. It's just a generic Amazon one. That pretty much seems to be the only thing I've been able to find the last three or four years. So then after it does start you get back on the highway and it just has no power. If you put your foot in it any more than say 10 or 12 pounds of boost it will not do much. But you can maintain 70 80 miles an hour no problem and it has no check engine light. Spark plugs have all been changed dielectric grease I put 2 different direct ignition cassettes and both of those have less than 20,000 miles on them. The most recent time it did it was a couple of days ago I drove from Kansas City to Joplin stop to put some gas in and it took three times to get it to start. And then all the way down i-44 I couldn't give it any more than about half throttle. Pull in the driveway let it set overnight took it for a drive the next morning absolutely runs flawlessly boost to 20 lb of boost. So the one constant thing seems to be a long drive which really heat soaks all the components of the engine. So over the last year I have not changed out the crank position sensor. And I have not had a crank position sensor fail on this car since I've owned it but I've only owned it 3 years so I'm not familiar with the first signs of a failing crank position sensor. Any input would be great thanks. What I plan on doing is changing it out before the next long road trip and see if it does the same thing. That crank position sensor has been in for 3 years and probably 60,000 miles or so.


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