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IF that yellow is only under the cap, dont despair! I have seen other cars do this. If you see it (coolant) on the dipstick or oil in the coolant, then thats likely a headgasket. Looks like what others have said about the condensation/sludge. Change to a quality oil and monitor.
Someone above mentioned the "secret recall" and thats true. I think there were also some recalls on the late 80s Toyota 3.0L V6 engines because of headgasket leaks. The 3.4L (introduced in 1994-1995) was a much better engine, but still some had this issue, but I think by 1996-97 models the issue was pretty much over being a widespread issue, but still some issues I guess with age/driving habits/service, etc. This engine was also used in the 1996-2002 Toyota 4-Runners. The 1990-95 4-Runner and Toyota trucks with the 3.0L V6 had terrible issues with headgaskets unfortunately... its a shame, because these were otherwise great engines mechanically. This is one reason that the HIGH resell value of the 1989-95 Toyota 4wd trucks have amazed me... they have this widespread engine issue, yet still command very high prices as used vehicles.
Why fix it correctly when you can Mickey Mouse it up for $5.00, right...??
Right. You always try to avoid spending more on any car than it is worth, You try to just keep it going as cheaply as you can so you can still drive it.
I got my oil chanced they said to get it onces a month and I went to get it done agin today than I saw this yellow stuff on the cap and down the pip so I changed the oil and the ain't frezz but the cheek engin light is still on I have to get back and forth to work for the next two weeks into payday to bye a nother one I'm a woman and they see me cumin I need my job can anyone tell me what to do
A bit of brown sludge on the oil filler cap probably means your car isnt getting up to proper temperature so if theres a bit of moisture in the oil it turns to sludge and collects at the cap. nothing to worry about unless the oil on your dipstick looks like chocolate milk.Try synthetic oil on your next oil change.
When you have a check engine light on you can go to a parts store like AutoZone or Advance Auto and they plug in a small handheld scanner to the OBD2 plug under yur dashboard and read you the codes. You can also buy one of these scanners yourself but just have it read first and it will tell you what it is complaining about.
These 2 stores do it free.
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Oil and ain't frezz mixed
