Still baffled
Thread Starter
|
Senior User
Joined: Mar 2004
Posts: 146
Likes: 0
From: Norristown, PA
Still baffled
I'm still debugging my starting and low speed bucking problem. 2 questions: how do you clean the EGR and where is the PCV valve located on a 94 302?? My Haynes manual doesn't show where the PCV is. Thanks.
Joe
Joe
Thread Starter
|
Senior User
Joined: Mar 2004
Posts: 146
Likes: 0
From: Norristown, PA
Originally Posted by Kemicalburns
whats an IAS? do you mean IAC?
Posting Guru
Joined: Nov 2004
Posts: 2,155
Likes: 1
From: sunny fla sometimes windy
Double check your TPS with a multimeter if it is scratchy (think noisy volume pot on a old stereo!!) Your truck will get the wrong resistance reading from it and screw with things!! It is just a glorified potentiometer so check for a smooth reading on the vom if it jumps or drops replace it!!! Usually the first quarter of any pots sweep is where they go bad!!!
Thread Starter
|
Senior User
Joined: Mar 2004
Posts: 146
Likes: 0
From: Norristown, PA
Originally Posted by blue beast
Double check your TPS with a multimeter if it is scratchy (think noisy volume pot on a old stereo!!) Your truck will get the wrong resistance reading from it and screw with things!! It is just a glorified potentiometer so check for a smooth reading on the vom if it jumps or drops replace it!!! Usually the first quarter of any pots sweep is where they go bad!!!
By the way, just took the truck for a long drive after cleaning the throttle body and installing a new cap and rotor. On the way out, truck had an intermittant, slight miss when idling at a red light. Other than that, it ran fine. Did not notice any miss on the way back home. Will continue to monitor the performance.
Trending Topics
Posting Guru
Joined: Mar 2007
Posts: 1,757
Likes: 2
From: Florida
I knew when I typed IAS it didn't look right...damn brain farts lol.....The TPS should be towards the inner part of the motor..that is...the driver's side of the TB as you are looking at it..Should also be a Metal piece bolted to the TB itself and probably has a black plug.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Posting Guru
Joined: Nov 2004
Posts: 2,155
Likes: 1
From: sunny fla sometimes windy
It's on the other end of the butterfly shaft from the throttle lever on the T.B. What all did you do? Did you add any gas line dryer? The TPS is probably fine if it's working like that but if you submerge you truck or drive through a lot of water on the 5.0 that Tps is on the bottom of the TB so that's where all the water runs, I keep mine sprayed with silicone spray as well as everything else. Who here has the original distributor rubber cover?? I do!!!!
Thread
Thread Starter
Forum
Replies
Last Post
Pastor Scott
2007 - 2014 Expedition & Navigator
5
Jan 5, 2017 09:26 PM
78_79ford
Explorer, Sport Trac, Mountaineer & Aviator
29
Aug 28, 2015 05:24 PM