timing chain

1993 TOYOTA PICKUP
225,000 MILES • 2.8L • 4 CYL • 2WD • MANUAL
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EDMUND NOVAK
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  • 2 POSTS
the timing chain broke and the mechanics replaced it. No damage done to engine. they cleaned everything up including the oil pan. now it runs fine but it runs bad and loses power as it warms up. they checked the oil pressure and fuel pump pressure are good.
Jul 29, 2016 at 11:13 AM
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RIVERMIKERAT
  • ✓ASE Certified Mechanic
  • 6,110 POSTS
  • ASE Certified Mechanic
It runs fine but it runs bad? A loss of power as it warms up could be overheating or it could be a plugged catalytic converter.
Jul 29, 2016 at 3:45 PM
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EDMUND NOVAK
  • MEMBER
  • 2 POSTS
I meant to say starts up running fine, but as it warms up it cuts out and loses power. No over heating and converter was replaced a couple years ago when stolen.
Jul 29, 2016 at 9:59 PM
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RIVERMIKERAT
  • ✓ASE Certified Mechanic
  • 6,110 POSTS
  • ASE Certified Mechanic
Check the resistance on the coil when hot. Check for the presence of spark at the plugs when hot. Check the timing. Check compression when hot and when cold.
Jul 30, 2016 at 8:43 AM
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