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Old 06-17-2007, 18:22   #1 (permalink)
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Sluggish 88 F150

88 F150 Lariat XLT supercab has a 302. When I hit the gas, it is sluggish to get up and go. Any ideas what to check for? It's so sluggish, it won't even spin the tires on wet roads. It will get up to speed eventually, just takes a bit.
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Old 06-17-2007, 20:40   #2 (permalink)
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Re: Sluggish 88 F150

Tune-up?
Fuel Filter?
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Old 06-18-2007, 03:34   #3 (permalink)
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Re: Sluggish 88 F150

Is it just smooth sluggish or missing, when jump on it?. If missing change plugs , check ya leads cap and rotor. I am guessing it is injected, if smooth but flat at WOT could be Air flow meter, or fuel problem. Check or change Air and fuel filters if look like old ones. This sort of stuff should be changed every 40k religously.
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Old 06-24-2007, 14:12   #4 (permalink)
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Re: Sluggish 88 F150

It's smooth sluggish, almost like maybe an injector isn't firing. Any tips on an easy way to check without tearing the rail off?
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Old 06-26-2007, 01:46   #5 (permalink)
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Re: Sluggish 88 F150

if it is an injector you will have a cylinder out,, check vacum, needle should be still/steady on 15 to 20 inchs vac. at idle , you could just listen close to tail pipe,, you will hear if one out. So does it have an air flow meter, or is it map sensor. Best ya check ya basics, change tune items,, if still no luck take to ya nearest dealer to sort out, ANd tell them ya changed spark plugs etc,, but still no fix. I would make sure runnig on all 8. then look at fuel, fuel pressure, it should be runnig about 35psi at idle then when snap throttle should come up a bit to about 40-45psi. and timing, check at idle,,with timing light. check full advance at about 3000rpm,, should peak then 38deg around about., does it still have distributor.. or all timing done by computer?. another thing, Does it have single coils for each cylinder or running four coils. one for two cylinders? I know that if one of these coils fail,, then you loose two cylinders.. let me know how ya get on.
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Old 09-05-2007, 01:59   #6 (permalink)
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Re: Sluggish 88 F150

Dunno wether you have fixed the problem, And for my 2Cents worth, (Been through similar issues0, get the TPS (Throttle Position Sensor) Checked.
Youll find it will be out of range and a new item will be required. If it seems only very slightly out of range it will cause issues.
Cheers.
Fish
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