why engine locked up when engine was shut off at end of short drive and after the only apparent change while driving was to change to second fuel tank which is suspected of containing old gas

Asked by Jan 31, 2017 at 01:07 PM about the 1996 Ford F-250 2 Dr XL Standard Cab LB HD

Question type: Maintenance & Repair

8 Answers


Pull the plugs and put a big socket on the crank and see if it is really seized up or not.

1 people found this helpful.

yes pull handle on crank will not move it with plugs out and starter off


You could use a bore scope to inspect the cylinders but it sounds like it is toast.

does that suggest it can be saved by top end fuel /air chambers cleaned of contaminants and cylinders loosened with solution/deoxidizer ? possibly?


That sounds like the pistons are stuck to the cylinders which means it needs a full rebuild.

and the old fuel would definately cause this?


Who knows what was in that gas tank? This does not sound like a coincidence.


Nothing in the gas tank can cause an engine to seize. You either lost oil pressure, or bearing shredded, you won't really know unless you do a tear down on the motor.

Your Answer


Looking for a Used F-250 in your area?

CarGurus has 401 nationwide F-250 listings starting at $2,300.


Ford F-250 Experts

  • #1
  • #2
  • #3
View All

Related Models For Sale

Used Ford F-150
2,344 Great Deals out of 215,477 listings starting at $1,300
Used Ford F-350
240 listings starting at $9,999
Used Dodge Ram 2500
147 Great Deals out of 4,934 listings starting at $2,495
Used Dodge Ram 1500
316 Great Deals out of 9,549 listings starting at $800
Used GMC Sierra 1500
722 Great Deals out of 58,462 listings starting at $1,900
Used GMC Sierra 2500
3 Great Deals out of 161 listings starting at $4,800
Used Ford Mustang
270 Great Deals out of 37,082 listings starting at $2,150

Used Cars For Sale

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.