Question about 1990 Ford F150
1990 F150 5spd man. EFI 4.9l six cylinder. Truck starts fine but when trying to accelerate has no power like its starving for fuel. Could this be the throttle position sensor not working? I've already changed the fuel filter and put new plugs in.
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
SOURCE: 1988 ford f150 running rough
Might want to change o2 sensor's, If they are not sending the right single its tell the computer to dump fuel. 1988 was using a fuel density system.
(1989 came out with Mass air flow system)
I think it might have a TFI module that's not working right. Located under distributor. Its gray and about 4" long and if equip, you need a 4 or 5.5 mm tool to unbolt it. This was a common thing back in the 80's. Its been so long I can't remember if the 4.9 straight 6 had it or not.
I- Ignition module
Posted on Apr 24, 2009
Tips for a great answer:
Aug 15, 2014 | Cars & Trucks
Dec 23, 2010 | 1990 Ford F150
Feb 09, 2010 | 1990 Ford F150
Jul 24, 2017 | 1996 Ford F150 Regular Cab
Oct 21, 2009 | 1996 Ford F150 Regular Cab
Jan 16, 2009 | 1990 Ford F150
Aug 22, 2008 | 1990 Ford F150
186 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: