Hard/ Delayed start
Thread Starter
|
New User
Joined: May 2014
Posts: 20
Likes: 0
Hard/ Delayed start
93' 302.
It will start well ( not always) and run great (when running) However at times the accelerator needs to be depressed all the way to get a start. I have spark ( checked with a spare wire/plug at the distributor) and a good pulse at the pick up coil (5-12vdc) The TPS was recently changed but I dont believe it was needed.
Could tis be as simple as a tune up? Wires/plugs, cap, rotor ect ect ect?
It will start well ( not always) and run great (when running) However at times the accelerator needs to be depressed all the way to get a start. I have spark ( checked with a spare wire/plug at the distributor) and a good pulse at the pick up coil (5-12vdc) The TPS was recently changed but I dont believe it was needed.
Could tis be as simple as a tune up? Wires/plugs, cap, rotor ect ect ect?
Posting Guru
Joined: Sep 2008
Posts: 2,379
Likes: 2
IAC is on the TB, the TPS is the one on the bottom. You said you already replaced the TPS. The TPS can be bad as well and you can check that to make sure. If you turn the key on, don't start motor, then back probe the wires on the TPS. One will be ground, one will be ~5v (this is VREF and should not change) and the last will be the signal back to the computer. This last one should read < 1.0 volt (or so) when the TB is closed. As you open the TB that value should change to where you have > 4 volts at WOT (wide open throttle).
Trending Topics
Thread Starter
|
New User
Joined: May 2014
Posts: 20
Likes: 0
Well it was as simple as a loose spark plug boot at the #2 position. New plugs, set the timing and shes as right as rain!!
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post
1996F-150!
1987 - 1996 F150 & Larger F-Series Trucks
10
Oct 7, 2015 01:45 PM
jimbomac22
1987 - 1996 F150 & Larger F-Series Trucks
2
Sep 28, 2010 08:38 AM
truckernmn1
1987 - 1996 F150 & Larger F-Series Trucks
1
Dec 26, 2008 08:46 AM