1986 Toyota Pickup runs worse when warmed up

Tiny
JEFF888
  • MEMBER
  • 1986 TOYOTA PICKUP
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 230,000 MILES
My truck runs good when I first start it up. But as I drive and the engine warms up it starts missing really bad. Where should I start?
Monday, September 22nd, 2008 AT 11:22 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,968 POSTS
As the engine warms the valve stems grows holding the vavle open, Remove the valve cover and check the valve lash and then get back to me. You are looking for a tight valve with little to no lash(clearance).
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Sunday, September 28th, 2008 AT 12:29 PM

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