1986 Ranger, 4 cyl, auto, 46k miles. Runs fine when it is cool, but when it is hot outside it misses (acts like it's not getting fuel) and then will quit running. After it sits for a while it will start and run fine again. Have replaced the plugs, wires, fuel pump and ICM. Could this be vapor lock?

mdoney
25

Asked by Sep 13, 2007 at 09:19 AM about the 1986 Ford Ranger

Question type: Maintenance & Repair

3 Answers

littlehorn
38,155

Did you replace the fuel filter? And is the vehicle one of the carbureted or fuel-injected ones? If so you could have a carburetor issue. It sounds as though something is going amiss when it is heated up. You replaced the ICM, are you referring to the coil, or the actual engine module? How about the distributor cap and rotor button? You may also have an issue with one of the sensors. 1986 Ford Vehicles used an EEC-IV system which was pre-OBD-II. You will need a code scanner that can scan Ford EEC-IV vehicles to pull engine-related codes on this vehicle.

Robby Ward
0

I had a similar problem, check your vacum booster pump. If there is a hissing while you are driving, that gets louder when you stop, odds are it a vacum booster pump.

A Facebook user
775

if it is carburated make sure the heat riser is closing when it gets hot. they seize up a lot on old shitty fords. lol. or the oxygen sensor is bad, the oxygen sensor only affects the engines control systems once its warmed up. and make sure the ECT sensor is working (Engine Coolant Temperature) and connected

Your Answer

Add photo

Related Questions

Ranger

Looking for a Used Ranger in your area?

CarGurus has 7,320 nationwide Ranger listings starting at $498.

ZIP:

Search Ford Ranger Questions

Ford Ranger Experts

#1 FordNut
FordNut
Reputation 1,270
#2 tennisshoes
tennisshoes
Reputation 910
#3 Tom Demyan
Tom Demyan
Reputation 630
View All

Related Models For Sale

Used Ford F-150"
2,448 Great Deals out of 200,276 listings starting at $1,500
Used Chevrolet S-10"
22 Great Deals out of 1,746 listings starting at $1,500
Used Dodge Dakota"
139 Great Deals out of 4,499 listings starting at $1,000
Used Jeep Wrangler"
234 Great Deals out of 13,550 listings starting at $2,795
Used Ford Mustang"
615 Great Deals out of 45,261 listings starting at $1,550

Used Cars For Sale

2011 Ford Ranger For Sale
67 Great Deals out of 1,483 listings starting at $4,990
2010 Ford Ranger For Sale
27 Great Deals out of 517 listings starting at $2,995
2009 Ford Ranger For Sale
23 Great Deals out of 473 listings starting at $3,495
2008 Ford Ranger For Sale
20 Great Deals out of 548 listings starting at $2,900
2007 Ford Ranger For Sale
13 Great Deals out of 357 listings starting at $1,995