1999 Toyota 4Runner Questions

All 1999 Toyota 4Runner Questions

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the car started running rough at about 46mph, mechanic found a cracked spark plug and put in new ones. 3 weeks later, same symptoms..running fine until about 46mph and then real rough and then smooths out. curious ab...
When I hook up my boat trailer I get all lights on left side of trailer, but only tail lights on right side, no turn signal or brake lights. Went under truck and stripped a litte wire and and tested, no voltage to gr...
the heater control screen in very dim, can you change bulbs?
the window on the rear passenger side does not go up or down
Need to drain oil after putting too much in and cannot see/find oil cap under truck, is there a plate or something I need to remove to get to it and the oil filter? Any pics?
Added too much oil, now blowing white smole especially tail pipe...toyoa 4runner..diagnosis?
My trailer lights are fine so I know it is in the vehicle. I tried changing the converter box thinking that was the ticket, but I still have the same issue. I also checked the fuses as well. What should I try next?...
very slow to speed up .hard to get on the freeway.have to let off gas and try again for it to speed up ,that dont work every time .it even back fires on occasion.
Rythmic knock/thump when AC is on. Sound is not there when car first starts or when AC first turns on. Takes at least 5 minutes after startup. I leave AC on all the time, first realized it was A/C related when I st...
The coolant tank is empty,after running, the tank no brooken.
I have recently had a bad vibration while excellerating as well as maintaining speeds over 60 MPH. The check engine light is on with a lean fuel indicator and O2 sensor. Is this the problem or something more?
I noticed my truck started making a rattle noise underneath every time I drive over speed bumps. It came and went. But now I hear it A LOT. It sounds like something is about to fall apart under my truck. I can't tell ...
Proper procedure to change the mass air flow sensor.