Question about 1997 Ford F150 Regular Cab
There are several moving parts which can create your problem. Lifters which dirty or weak will cause extra play in the valvetrain when the lifter does not pump up fully. A dirty oil passage to a lifter will starve it for oil. A valve stem can be sticking or even a weak valve spring can create extra clearance in the same area.
The fuel injectors also have moving parts. They normally click as they work. If one is clogged up it can make more noise than usual. All the injectors on one bank can make more noise if your onboard computer senses a "lean" condition and opens them wider. The O2 sensor on the left bank may not be keeping a steady mixture and you are hearing that bank of injectors open up to enrich the fuel mix.
Sometimes a spark leak will sound like a click. It can be at random and the voltage has to be right for the spark to jump.
You would need more than a cheap handheld scanner to diagnose some of the conditions I mentioned. You can try Autozone or Oreillys for a free handheld scan, but I believe you need a bigger computer to monitor your problem.
Posted on Aug 23, 2010
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.
New users get 2 Free calls (no credit card required) and instant help on almost anything you can think of (from cars to computers, appliances, handyman, and even pets).
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
Tips for a great answer:
Feb 06, 2017 | Hyundai Cars & Trucks
Dec 13, 2016 | Cars & Trucks
Jul 23, 2016 | Cars & Trucks
Aug 10, 2014 | 2001 Volkswagen Jetta TDI
Sep 29, 2013 | Land Rover Cars & Trucks
Nov 23, 2012 | 2006 Subaru Forester
Oct 27, 2012 | 2004 Mazda MPV
Apr 05, 2009 | 1997 Mazda Protege
Jan 08, 2009 | 2000 Ford F250 Super Duty Crew Cabs
396 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: