Last post on Jan 29, 2013 at 6:07 AM
You are in the Ford F-Series
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Ford F-150, Ford F-150 SVT Lightning, Truck
#394 of 569 Re: 1990 F-150 Lareat w/302 overheating [brucebennett]
Jun 05, 2007 (2:31 pm)
I have a 1995 Ford F150 Supercab XLT Lariat 4x4. It has 125,000 miles and is in perfect shape, no rust and runs like new. I've owned it since new. It is like factory fresh, except...
I recently replaced the water pump, thermostat, hoses, serpenntine belt and idler, fan clutch and radiator, as well as the temp sender and gauge (earlier). The truck started overheating under load. The temp would rise fairly rapidly and then drop down just as dramaticaly. At first it was only when towing a 7500 lb trailer. Then it started doing it under hard acceleration, deceleration (engine braking) and even running at lower speeds (30-40 mph). Putting the engine in neutral and gunning the engine would make the problem go away, as would turning on the heater.
I tried removing the thermostat, and it ran colder (about 1/4 mark) and worked well. Under load, it would rise up to about halfway sometimes.
I tried the old thermostat, but the problem came back. My local mechanic did not have a head gasket tester. So I took this 12-year-old truck to the (ugh) Ford dealer. They put a new radiator cap and tstat in and ran it. According to their "diagnostic computer" the engine itself is not overheating (whatever that means) and it is not the head gasket.
They are thinking it may be clogged catalytic converters (???). According to the book, the cats are good for 100,000 miles, so they should be replaced. They are $1200 from the dealer (ouch!). Or, the manager suggests punching them out, as a 1995 does not require emissions testing in NY.
Jury still out on this one. The mechanic says it feels like it is losing power (perhaps) and the cats have to go.
Suggestions? Ideas? I'll keep you posted as to what finally works out... I can't wait to see the bill on this one. He must have six shop hours into it already.
#395 of 569 Re: 1990 F-150 Lareat w/302 overheating [robertplattbel]
Jun 07, 2007 (2:43 pm)
The dealer called today. They replaced the thermostat and radiator cap. No go. They tested the truck and said the engine is not overheating, according to their diagnostic computer, but that the temperature is going up (whatever that means). They finally put in the dye fluid in the cap deal, to test for head gasket leaks, etc., and it turned barely yellow. He said usually it turns bright yellow when a head gasket is leaking. There is no coolant in the exhaust, nor mixing of coolant and oil.
He thought maybe a minor head gasket leak (my theory also) that is leaking exhaust gases into the coolant under load, but not sucking coolant back into the cylinder. So far, the total bill is about $200, including an oil change, state inspection, fixing a leaking drain plug, and rotating the tires. It would be about another $800 to pull the heads and replace the head gaskets, etc.
I told them to go ahead and do it. We'll see if this fixes the problem. The truck otherwise runs like new.
#396 of 569 wuts up can some one help out
Jun 12, 2007 (10:27 pm)
hey people well i have a question if anybody knows..i own a 1999 Ford F150 witha Triton V8 and it has 202 horsepower....and i wanted to know if there was any way i could make it gett its full 360 horspower...because i want to transform it into a Ford SVT Lightning but i have to know if i can get the full 1999 Lightning Horsepower witch is 360...can somebody help me out...
#397 of 569 Re: New owner [lawman1967]
Jun 16, 2007 (7:14 am)
I have a 2002 with the 4.2 V6 and am satisfied. The new model of the F150 (starting in 04) is about 800 lbs. heavier. My truck has 94,000 miles on it. Very reliable.
Good luck with your new truck
#398 of 569 1999 Lightning HP.
Jun 17, 2007 (7:48 am)
the Lightning uses a super charger and DOHCs to get to 360 hp. So you'll probably have to spend more than your truck is worth.
#399 of 569 2006 F150 Payload & AirBags
Jul 01, 2007 (1:16 pm)
My 150 is rated at 7050Lbs and the door jam states not to exceed 1713 for max payload. I am pulling an ULTA Lite 5th wheel without problems with the 5.4L and 3.73 rear end. My question is the weight. Weighted , the rear axle is 83Lbs below the GAWR and the total weight of both is only 23Lb below the GVWR. Can I safly put airbags to on this truck to provide a better safty margin? And, with GAWR's of 3600 for the front and 3850 on the rear, why is the GVWR 7050 when these total to 7450?? I am looking a a 250, but the door jam only show I would gain about 150 lbs from the 1713 I already have. Not much for the additional truck size.
#400 of 569 Re: headliner [vinny2424]
Jul 03, 2007 (4:21 am)
vinny, I have the same truck and I get the same problem with my head liner, it drives me crazy. I wish I had a solution for you but I don't. If someone does please let us know...
#401 of 569 Re: Just bought an F-150 [biscayne]
Jul 06, 2007 (6:59 am)
The lexol should save your leather. I had the same concern with my 2001 F-150. The seats are doing just fine.
KCAir at Personafile
#402 of 569 Re: Nice... [gasguzzler007]
Jul 11, 2007 (5:52 am)
I have a 2002 F150 Lariet Supercrew with 66,250 miles.
While on vacation a couple of weeks ago it blew a spark plug out of the head. This occured, not while driving, but when the truck was started. It could have been a very serious situation if it had happened at speed in traffic. Not to mention the potential for fire.
Both the servicing dealer (not my home dealer) and Ford Customer Care mislead me to beleive that the problem was an isolated incident and was caused by my home dealer not properly instaling replacement spark plugs.
As it turns out the spark plugs were never replaced in my truck (they were the factory installed plugs) and that certain Ford motors with aluminum heads have a problem with spitting out spark plugs. Ford has ignored the problem.
For additional info go to:
I have been a Ford fan for 40+ years; however may never even consider another Ford because of this experience and Ford's attitude about this problem.
#403 of 569 99' F-150 Brakes
Jul 12, 2007 (11:43 am)
I have to replace the brakes AGAIN on my truck. Does anyone have a better rotor/pad combo that they had better luck with than the OEMs?