Ok heres the problem: Slow acceleration, Poor gas mileage for the model, missing alot of power. As in my truck struggles to make it up a elevated grade and feels as if it's just stripped of all power. I know it's either the Fuel Injection system of Catalytic converter, or could possibly be a clutch fan or gearing issue. Any thoughts or suggestions? it's a 1990 F-150 302
2007-06-19 18:31:04 · 7 answers · asked by David 2 in Cars & Transportation ➔ Maintenance & Repairs
I seriously doubt it's a gearing problem as you would have noticed a loss of power a long time ago (like from Day 1 of ownership!). Nor do I think it's the clutch fan as that will have little bearing on anything other than problems in the cooling system.
OK! That leave two possibilities - the injectors or the catalytic converter. Again, I'd rule out the converter since the vehicle would also show distress when you're starting, idling;ing and just driving around town (which you didn't mention). So what's left? The injectors.
However, before you invest a lot of money replacing or having the injectors cleaned, I'd suggest a compression check; it's possible you've got a bad valve, poor sealing rings or even a head problem. You don't say how many miles are on the truck, but I'll bet it's a "ton" of miles!
I'd almost bet on a bad valve, since you have a "loss of power climbing hills". Have it checked. Good luck!
2007-06-19 18:44:10 · answer #1 · answered by Kiffin # 1 6 · 1⤊ 0⤋
It could be a timing issue as well. You should pull codes on it to see if that will help you narrow down the problem. That said, the 302 is a great motor in a mustang, but in a truck it isn't really playing to its strengths (short stroke, short rod, small size).
2007-06-19 18:39:06 · answer #2 · answered by Tomsriv 5 · 1⤊ 0⤋
It does sound like catalytic converter or exhaust system plug up check for a potatoe in the tailpipe too.
2007-06-19 18:43:13 · answer #3 · answered by Dennis in Central Florida 3 · 0⤊ 0⤋
the 1st component you may want to verify for is any obvious indicators that the transmission isn't working actual, so a approaches because it no longer shifting whilst this is think to or no longer shifting in any respect. Then look on the fluid to make advantageous it would not scent burnt or look black. merely reason the fluid is slightly darker then familiar would not advise the transmission is undesirable. What i might advise is to take the motor vehicle to a transmission expert and have him double verify it merely to be risk-free. Then, the subsequent time you have your transmission serviced i think of it would be a sturdy theory to have who ever is working on it to flush out the transmission lines besides. What you should bear in mind is that on all automatic automobiles the transmission fluid runs by the radiator so once you provider the transmission there remains fluid in the equipment. whilst the grimy fluid mixes with the hot fluid even once you merely serviced it, it has a tendency to look slightly darker then familiar. different then that it would be risk-free to rigidity merely be advantageous you have it checked.
2016-12-13 07:57:59 · answer #4 · answered by ? 4 · 0⤊ 0⤋
The Catalytic converter shouldn't do any of those things, so you need to look at the other end.
2007-06-19 18:35:57 · answer #5 · answered by Mike1942f 7 · 0⤊ 1⤋
try neither. you have just described a bad fuel pressure regulator. try puling the vacuum line of and see if there is fuel present. if there is fuel then there is your problem. if you still think it is the cat you can do a simple test with a vacuum gauge.
2007-06-19 18:36:11 · answer #6 · answered by damaged110 2 · 1⤊ 0⤋
when was the last over haul?
2007-06-19 18:35:27 · answer #7 · answered by Davetheman 3 · 0⤊ 1⤋