Engine idels to fast after replacing head gasket.

25

Asked by Oct 22, 2007 at 06:45 PM about the 1992 Ford F-150 S LB

Question type: Maintenance & Repair

After replacing the head gasket in my 1992 F150 3.9L 6 cylinder, the first time I started it the engine raced like it was at full throttle and the temperature gage does not show temperature. I can't time it or determine what happened to the temperature gage. Any help would be appreciated.

3 Answers

did you get all the vacume hoses back on and in correct order,as for temp did you plug wire back in for temp guage.

42,955

Yes, sounds like a vacuum problem, and the temp gauge may just be a disconnected wire.

1,255

The computer depends on the temp sensor to control fuel and idle . There are 2 sensors on the vehicle for sure , one for the dash gauge and one for the computer.....make sure they are plugged in and connections are not corroded/ rusty/ green !! Vacume leaks , and or improper vac hose connections will cause the engine to race . Low coolant level will affect idle speeds too , make sure you get in as much coolant as possable and bleed out all air locks in system. Make sure you don't have the throttle stuck open , or the cables binding as they will hold open the throttle plate and cause the engine to race too !!

Your Answer

Add photo

Related Questions

  • price to repair a blown head gasket 3 answers

    Blown head gasket water on oil dipstick will not crank up

    1996 Ford F-150 XL LB

    -

    Maintenance & Repair

  • My f150 will not start. It makes a loud fast clicking 2 answers

    It almost sounds like a buzz. I have changed the starter and the alternator that autozone checked and said was bad. I charged the battery over night, and the charger says it is charged. Same thing sti...

    2003 Ford F-150

    -

    Maintenance & Repair

  • 2003 Ford F-150 blown head gasket 3 answers

    How do you fix a blown head gasket for 2003 Ford F-150? Is it expensive?

    2003 Ford F-150 Lariat Extended Cab 4WD LB

    -

    Maintenance & Repair

  • oil pan gasket replacement 1 answer

    How difficult to replace leaking oil pan gasket on a ford f150 4 wheel drive with 351 engine in the truck? Does the engine need to be jacked up to get the pan out?

    1995 Ford F-150 XL Extended Cab LB

    -

    Maintenance & Repair

  • head gasket 4 answers

    i have the v8 6.0l powerstroke (powerbroke) engine and im learning that there is a major problem with the head gaskets blowing i would like to do some preventitive maintance and change those out befor...

    2004 Ford F-350 Super Duty XL 4WD Crew Cab SB

    -

    Maintenance & Repair

F-150

Looking for a Used F-150 in your area?

CarGurus has 206,316 nationwide F-150 listings starting at $1,499.

ZIP:

Search Ford F-150 Questions

Ford F-150 Experts

#1 OJ
OJ
Reputation 7,940
#2 dandyoun
dandyoun
Reputation 4,360
#3 tennisshoes
tennisshoes
Reputation 2,790
View All

Related Models For Sale

Used GMC Sierra 1500
822 Great Deals out of 68,199 listings starting at $2,484
Used Ford Mustang
476 Great Deals out of 45,735 listings starting at $1,999
Used Ford F-250
481 listings starting at $3,475
Used Ford Explorer
945 Great Deals out of 72,519 listings starting at $1,000
Used Ford Ranger
197 Great Deals out of 5,805 listings starting at $1,650
Used Jeep Wrangler
276 Great Deals out of 18,163 listings starting at $2,950

Used Cars For Sale

2017 Ford F-150 For Sale
32 Great Deals out of 128,121 listings starting at $18,445
2016 Ford F-150 For Sale
123 Great Deals out of 17,380 listings starting at $18,848
2015 Ford F-150 For Sale
186 Great Deals out of 7,904 listings starting at $17,900
2014 Ford F-150 For Sale
381 Great Deals out of 12,590 listings starting at $7,995

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.