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Originally Posted by Old Smoky
I just purchased this 1987 300TDT and it is my first diesel car (I do own a diesel tractor). It has 96,000 miles on it. At start up it runs rough, as if it is only running on 4 cylinders and it smokes alot. After about 1 minute it runs perfect.It runs better if I cycle the glow plugs twice before starting it. I thought I may have a couple of bad glow plugs but in the complete set of reciepts I got with the car, I noticed all the glow plugs were replaced two years ago....Any ideas?
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Two years is plenty long enough for one plug to go bad, it depends on the use not the time. If the car was started many times a day and driven in cold climates where the GPs cycle extra long then you can certainly burn them up in 2 years, plus the fact that one may just have been defectived from the beginning. You symptom is classic GP failure, start there and see if they are all good...if so you can start fooling with valve adjustments.