Hard start

1998 PEUGEOT 505
427,800 MILES • 1.8L • 4 CYL • 2WD • MANUAL
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KEVMUYA
  • MEMBER
  • 3 POSTS
I am experiencing hard start challenges with my vehicle listed above 504 saloon car. I have changed the spark plugs and fuel pump, which the mechanics felt were faulty, but still it doesn't work.

Kindly assist.
Jul 20, 2020 at 10:24 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
Hi,

This vehicle isn't offered in the US, so I have little to no technical info on it. However, I'll try to help.

First, is that the correct mileage you listed? If it is, has anyone checked engine compression?

https://www.2carpros.com/articles/how-to-test-engine-compression

Also, try this for me:

1) Turn the key from off to the run position (engine off) and count to 5.
2) Turn the key off.
3) Perform step 1 and 2 three times and on the forth time, see if it starts easily.

Let me know.
Joe
Jul 21, 2020 at 6:45 AM
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KEVMUYA
  • MEMBER
  • 3 POSTS
Yes, the mileage is correct. secondly i tried the following steps, but still experiencing the same problem.
Jul 21, 2020 at 9:07 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
Hi,

The next thing I would suspect (based on mileage) is low compression. Has that been checked yet?

Joe
Jul 22, 2020 at 9:31 AM
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KEVMUYA
  • MEMBER
  • 3 POSTS
Will check compression, maybe what would cause low compression?
Jul 22, 2020 at 3:02 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
Hi,

I'm basing that idea on the number of miles on the vehicle. Piston rings will wear over the miles. If the compression starts getting lower, it can cause a hard start.

Here is a link that explains more about causes:

https://www.2carpros.com/articles/the-reasons-for-low-compression

Let me know what you find.

Joe
Jul 22, 2020 at 10:46 PM
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