Hard Starting
#1
Hard Starting
Hi all- Recent problem starting the Jag. It turns over and seems to run for less than a second then dies, this happens two times, then starts normally and runs perfectly thereafter. Weather has changed a bit in the past weeks but never had this problem before. I go through this process each morning any place to look? Thanks.
PS- Runs perfectly, no other problems and 50k miles on her.
PS- Runs perfectly, no other problems and 50k miles on her.
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bigcat777 (10-28-2015)
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bigcat777 (10-28-2015)
#4
#5
That's good news. I would definitely buy some MAF sensor cleaner and throttle cleaner. Cleaning the MAF is pretty straight forward (Google for a YouTube); throttle bore and plate cleaning is a little harder. Also might clean the part load breather -- be very careful with depth and size of drill bit used to clean it (lots of threads -- Google search).
#6
#8
That just might be the problem: especially now that it is getting colder (more so in Idaho than here in SE Virginia and NC where it is 80* today). Do you still have the original plastic cross over pipe -- that is where the sensor is located -- if so, might be a good time to get a new one with a new sensor attached (bought mine from Welsh, but many suppliers).
I think I would still clean the MAF, throttle bore/plate, and part load breather.
I think I would still clean the MAF, throttle bore/plate, and part load breather.
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bigcat777 (10-29-2015)
#9
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bigcat777 (10-29-2015)
#11
#12
Update. Car stalled today going down a hill. Got home and noticed lots of oil in the part load breather, air box, and into the tube running towards the throttle body. I have replaced the part load breather, looks like the orange seal or rings are crushed. Also appears there should be some filter of some sort between the cam cover and the part load breather. I will clean the parts bt not likely going to solve the heavy oil problem. Thoughts? Thanks
#13
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bigcat777 (10-30-2015)
#14
RJ- I do recall seeing (I think) that setup with the mesh during the tensioner replacement...however looking down now from the outlet from the breather, I don't see any mesh at all. Could I ball up some steel wool and push into the area, of course not to far as to drop down all the way. Possible?
#15
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bigcat777 (10-30-2015)
#16
#17
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bigcat777 (11-01-2015)
#19
#20
My fuel trims were a bit off and the engine would hesitate slightly on the interstate. My MPG was also averaging slightly lower than usual. According to a professional scan tool my MAF was reading "a little high", to quote the mechanic. But, he said it did not need replacing.
I picked a MAF up at a salvage yard and now fuel trims are perfect, mileage went back to normal and no hesitations.
I share this only to convey how difficult it can be to diagnose an inaccurate MAF.
Good luck.
I picked a MAF up at a salvage yard and now fuel trims are perfect, mileage went back to normal and no hesitations.
I share this only to convey how difficult it can be to diagnose an inaccurate MAF.
Good luck.