Rough idling and acceleration

1987 JAGUAR XJ6
135,000 MILES • RWD • AUTOMATIC
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DWIGHT TULLIS
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  • 1 POST
When car idles after starting it runs rough. then when driving seems like no acceleration like not getting gas, very rough.

Oct 5, 2017 at 10:13 AM
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STRAILER
  • ✓ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
It sounds like you may have a head gasket blown between two cylinders but to be sure we need to do a complete compression test.

Here is a guide to get you started

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

Please let us know what you find.

Cheers, Ken
Oct 6, 2017 at 3:20 PM
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