Question about 1992 Pontiac Grand Am

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My 92 quad4 2.3 engine is missing on 1&4 cylinders why

I changed the coil packs and even put a new computer and a timing chain also new spark plugs but to no avail it still misses on 1&4 but 2&3 cylinders fire perfect oh yes I even checked the compression and its good .it's driving me crazy ,its really my dads car .

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

HellPoolHall
  • 74 Answers

SOURCE: missing on one cylinder

Replace the coil going to that cylinder, and then replace the valve cover gasket to prevent further oil from getting on the new coil. If it is not the coil, the crank sensor could have gone bad in it.

Posted on Aug 05, 2008

  • 69 Answers

SOURCE: 2001 Pontiac Grand Am SE

answer is on other post.

Posted on Aug 14, 2008

acemasters
  • 27 Answers

SOURCE: 1995 Grand Am idles rough

sound very much like you have an air leak problem and even a seal problem to on the intake manifold and injector seals may be leaking same happend to me on my car and i found i had to strip it all again to sort it out .
the injector seals if they are not sitting right or just a slight spec of dirt there you have a problem.
air leaks to see if you do have one use wd40 can spray on the manifold and if the engine picks up you have a leak ok
i hope this helps
let me know how you go on thanks
acemasters

Posted on Jan 18, 2009

  • 1 Answer

SOURCE: 92 Firebird 3.1 L engine wont start many items checked replace

Ill buy it.=D i have a wrecked car but the engine and everything in it is perfectly fine. it will fit into your car and everything.

Posted on Oct 09, 2009

flbergeron68
  • 541 Answers

SOURCE: 2000 montana 3400 engine,code p302 number 2

ignition control module, throttle position sensor and other sensors need to be tested to establish problem, any codes from OBDII ? check engine light staying on ?

Posted on Jul 04, 2010

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Photo:

ghost45_15.jpg
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Photo:
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1 Answer

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