Interested in less expensive way to perhaps diagnose and fix "hesitation" while driving at certain speeds?

1999 MERCURY VILLAGER
172,000 MILES
Avatar
CHEF1
  • MEMBER
  • 1 POST
Coming from picking my son up at camp. On way home noticed a "shuddering" as I was driving. My car is 13 years old with alot of miles. On limited income so new car is not option. Bought in to get check engine light read. The following codes were given:

P0138
P1336
P0300
P0325

Not sure what all means, when I began to call around most mechanics want 100 dollars to diagnose on top of repair. I am looking for less expensive options if any at first. Because of the misfire I thought to start with new plugs. I did have a complete tune up 1 1/2 years ago. Could and should that be the starting point to at least address the hesitation???
Jun 30, 2012 at 10:53 AM
Advertisement
Avatar
DOCFIXIT
  • ✓Experienced Mechanic
  • 18,828 POSTS
Without checking out and doing diagnosis would start with replaceing Crankshaft position sensor see diagram
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Jun 30, 2012 at 11:05 AM
Avatar
BRAVESTAR1
  • ✓Experienced Mechanic
  • 234 POSTS
I looked at this question earlier, and someone said to me, that a car can't run without the crankshaft sensor. Is that true? I have this same screwy problem, where it misses now and then, and shudders on occasion too.
Jul 22, 2012 at 11:21 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.