Question about 1995 Chrysler LHS
We have a 1995 Chrysler LHS. It won't start in the morning when it's cooler (we live in FL), but it will usually turn right over in the afternoon and evening. Sometimes it won't start then either but most of the time it's the morning that it has trouble starting. Battery is good as are the cables. Ignition lights go on. Help!
The most likely reason for the problem is that the high tension (spark)
side of the ignition system is suffering a breakdown due to increased
arcing from the spark wires to metal parts of the engine nearby. If the
spark wires are the originals that came when the car is new now would
be a good time to replace them. You may be able to see the "light show"
if you open the hood while the engine is idling on a humid evening in
dark ambient light conditions.
There are other checks that would be worthwhile. You will note that there a 3 pairs of spark plug wire towers at the spark coil. The resistance between the center contacts of each pair of towers should be in the range of 11,500 to 16,000 ohms. The wires themselves also have resistance built-in to reduce radio noise. So verify that the wires read between 3,000 and 12,000 ohm per foot of length when you measure between the ends of the wires. There is no specific test for insulation breakdown except the arcing "light show".
It is also possible that there is a poor connection somewhere in the low tension circuit. A good way to find that would be to ask the memory of the engine controller if it has recognized any 'fault' codes and stored these as two digit numbers. You can do this yourself. Try using the ignition key: turn it "on-off-on-off-on" and leave it "on" (doing this quickly, no longer than 5 seconds). Then watch the 'check engine' light which will be illuminated to begin flashing, then pause, flashing, pause, etc. Count the number of flashes before each pause and keep track of the numbers. Repeat the readout and verify the counts are correct. Then group them in pairs in the order that they came out, thus forming two digit numbers. You may notice that the pause is shorter between the digits of a given number, and longer between the numbers themselves. Then send me a 'follow-up' question telling me the results of your readout. By the way, 55 will be the last number (two groups of 5 flashes each) and that is the code for "end of readout". Let me know if you get any codes other than 55 and I will give you some corrective action suggestions
Posted on Jun 27, 2008
Few possible causes
Posted on Jun 27, 2008
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Posted on Jan 02, 2017
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