Why does my 96 ford f150 boil water out of the radiator coolant resivoir. I bought a brand new water pump,radiator, took the thermostat out and I got all new hoses on everything with in the last 3

Asked by Jun 06, 2014 at 05:16 PM about the 1996 Ford F-150 Eddie Bauer SB

Question type: Maintenance & Repair

Months and it over heats when I start
goin down the road and it will cool
down for a min and over heat again.
I'm wondering why it would be
bubbling out the rad coolant resivoir.
It sounds like my engine is going
slow could it be my fan clutch not
spinning fast enought to cool down
my motor or ???????????

6 Answers

116,605

Have you replaced the radiator cap? An old cap can cause this. Also could be a head gasket issue. Do an exhaust gas test on cooling system. This will help you tell if its a head gasket issue.

5 of 5 people found this helpful.
17,155

Put the thermostat back in . With it being out means it's at least not stuck. But you need one to let the engine come up to operating temp quicker at start-up. (it actually stops water flowing out of the rad at start and only allows coolant to flow after warm up) At the least do not run the engine when it is overheating. I have no intention of looking up anything on 1996 Ford. Are you telling me you have a fan driven by a fan belt?

1 of 1 people found this helpful.
21,140

You do have the proper mixture of coolant to water mixture? No 100 percent water or 100 percent coolant, right?

1 of 1 people found this helpful.
21,140

If you remove the thermostat from the vehicle, it will overheat. The heated water from the engine has to be given time to be cooled off by the radiator and fan. Is the fan spinning when the engine runs? Check for blockages in front of the radiator like leaves etc which would restrict the flow of air through the radiator.

2 of 2 people found this helpful.
15

Possible fan clutch could be bad, make sure you do not have air pocket in the system. Make sure your fan shroud is in place also. With new radiator, water pump make sure have new thermostat. Hope you did not blow head gasket. Good luck.

People with boil over problem after shutdown,,, i am having same issue,, with 1986 F150, 6 cyl 300 cube,, loaded "Lariat" version,, i found my radiator to be hot on the top half,, COLD on the bottom half after a good run on a hot day,, even after a good flush, the radiator (in great shape) is still clogged on the inside bottom,,, im taking it out,,, then to radiator shop to be cleaned out by professional craftsmen, i am sure this is the problem !!! Then ride "cool" again in all circumstances!! Will let you know..

Your Answer

F-150

Looking for a Used F-150 in your area?

CarGurus has 223,758 nationwide F-150 listings starting at $1,200.

ZIP:

Ford F-150 Experts

  • #1
    OJ
    Reputation
    9,460
  • #2
    dandyoun
    Reputation
    4,650
  • #3
    tennisshoes
    Reputation
    3,270
View All

Related Models For Sale

Used GMC Sierra 1500
1,168 Great Deals out of 64,516 listings starting at $999
Used Dodge Ram 1500
417 Great Deals out of 11,116 listings starting at $950
Used Toyota Tacoma
684 Great Deals out of 45,328 listings starting at $2,500
Used Ford Mustang
583 Great Deals out of 39,799 listings starting at $1,895
Used Ford F-250
448 listings starting at $2,500
Used Chevrolet Tahoe
793 Great Deals out of 41,831 listings starting at $1,987
Used Ford Ranger
190 Great Deals out of 5,553 listings starting at $995

Used Cars For Sale

2018 Ford F-150 For Sale
121,317 listings starting at $20,313
2017 Ford F-150 For Sale
182 Great Deals out of 26,996 listings starting at $18,500
2016 Ford F-150 For Sale
212 Great Deals out of 7,829 listings starting at $15,552
2015 Ford F-150 For Sale
492 Great Deals out of 11,342 listings starting at $11,990
2014 Ford F-150 For Sale
751 Great Deals out of 15,348 listings starting at $9,990

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.