I have a 1991 Toyota 4runner and after you run it till the motor warms up it starts spitting and sputtering trying to die and if it does then it's hard to get it crank back until it cools.


Asked by May 30, 2013 at 03:33 PM about the 1991 Toyota 4Runner 4 Dr SR5 V6 4WD SUV

Question type: Maintenance & Repair

We changed the fuel filter, the cold pack sensor (I think that's what it's called) and some other kind of sensor on the motor, also put a new caldic  converter on it and changed the plugs and wires and pretty much everything we could think off and it still did not fix it! If anybody knows what might be wrong  with it I'd really appreciate it, Thank you and God Bless!

5 Answers

An ambient air temperature sensor is what is needed here~ they ain't that much money~!

2 out of 2 people think this is helpful.

if you are distrustful of the black butyl rubber leaking and cracking as to be expected in a 1991 vehicle, you can replace those leaking butyl black rubber ones with silicone replacements for...yes some money, but you'll only have to do this once~

1 out of 1 people think this is helpful.
Joshua Brown

Sounds like the computer is derping on the fuel mixture. Check Oxygen sensor, temp sensor, and manifold pressure sensor. Why is the first thing a shop wants to sell a catalytic converter? Someone's trying to turn work orders into lotto tickets.

2 out of 2 people think this is helpful.

Thank you, I'll try those!

1 out of 1 people think this is helpful.

let us know...the thing what determines the temperature...remember the old themal coil heat-riser and butterfly choke mechanism...we've evolved down to a mosquito biscuit~ ain't life good~!

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions


Looking for a Used 4Runner in your area?

CarGurus has 18,520 nationwide 4Runner listings starting at $2,400.


Search Toyota 4Runner Questions

Toyota 4Runner Experts

#1 Kurt Burton
Kurt Burton
Reputation 1,010
#2 azurro
Reputation 610
#3 kbro
Reputation 570
View All

Related Models For Sale

Used Toyota Land Cruiser"
16 Great Deals out of 1,219 listings starting at $3,750
Used Ford Explorer"
1,371 Great Deals out of 71,174 listings starting at $985
Used Nissan Pathfinder"
467 Great Deals out of 24,621 listings starting at $2,800
Used Ford F-150"
3,193 Great Deals out of 215,835 listings starting at $1,000
Used Jeep Wrangler"
438 Great Deals out of 16,253 listings starting at $2,395
Used Toyota Camry"
1,682 Great Deals out of 97,652 listings starting at $895

Used Cars For Sale

2016 Toyota 4Runner For Sale
40 Great Deals out of 9,982 listings starting at $29,240
2015 Toyota 4Runner For Sale
55 Great Deals out of 1,366 listings starting at $24,799
2014 Toyota 4Runner For Sale
29 Great Deals out of 844 listings starting at $19,991
2013 Toyota 4Runner For Sale
30 Great Deals out of 908 listings starting at $18,999