Engine running rough on acceleration (chirp/shudder) - Ford Truck Enthusiasts Forums



1961 - 1966 F-100 & Larger F-Series Trucks Discuss the Slick Sixties Ford Truck

Engine running rough on acceleration (chirp/shudder)

Reply
 
 
 
Thread Tools Search this Thread
  #1  
Old 05-07-2012, 01:24 PM
stavovy stavovy is offline
New User
Thread Starter
 
Join Date: Dec 2011
Posts: 4
stavovy is starting off with a positive reputation.
Engine running rough on acceleration (chirp/shudder)

Hey guys. Looking for some help with a diagnosis here.

My 1964 F100 Styleside with 292 y-block just started running "rough" all of a sudden. For the last 5 months, she has been running smooth and strong. The carb was rebuilt in November.

Here are the symptoms now . . . Friday morning, truck ran great. Friday afternoon (after warming up the engine), I started to get a chirping/shudder on acceleration. Sounds terrible and makes this noise while accelerating in any gear. Doesn't make the noise (or at least not very noticeable) when I rev it while parked.

I pulled all the plugs on Friday (a couple were rather loose) and checked their condition/gaps. All looked similar and were in good shape. Drove it for a test run, and it still sounded rough. Had a busy weekend (with my one month old) and didnt get to address it anymore. This morning, it drove fine for the first 15 minutes, and then the sound/shake kicked in again.

I am not sure what to check first here. I am handy around a truck, but I am by no means a master mechanic. Any advice would be greatly appreciated.

Like I said, this truck ran like a dream until Friday, and now when I accelerate, I get a noticeable shimmy and the engine has a chirp/roughness. Seems to me like something with the mixture, but I dont know enough to just know this.

Thanks guys . . . appreciate your expertise! Please feel free to ask questions!
Reply With Quote
  #2  
Old 05-07-2012, 01:40 PM
schoo's Avatar
schoo schoo is offline
Postmaster
 
Join Date: Mar 2012
Location: placer county usa?
Posts: 3,060
schoo is a name known to allschoo is a name known to allschoo is a name known to allschoo is a name known to allschoo is a name known to allschoo is a name known to all
vacumn leak? but to me those sounds shudder chirp is clutch an back drive line
Reply With Quote
  #3  
Old 05-07-2012, 10:37 PM
stavovy stavovy is offline
New User
Thread Starter
 
Join Date: Dec 2011
Posts: 4
stavovy is starting off with a positive reputation.
Thanks for the ideas . . . truck ran terrible on the way home from work today. Shuddered so bad that I didn't want to accelerate. Ended up getting her home below speed limit and rough.

Once home, I revved it a bit, and I think you may be right, schoo. The chirp appears to be coming from the rear differential area. Not sure what the problem is though.

The enging also sounds rough when i open the throttle and I had one small backfire. Tomorrow morning, I am gonna check out the differential and also inspect the fuel filter. Maybe I should look at the distributor too.

Any other ideas?? Any advice?? Thoughts?

Thanks guys . . . this is bugging me!
Reply With Quote
  #4  
Old 05-07-2012, 11:14 PM
pburress's Avatar
pburress pburress is offline
Senior User
 
Join Date: Jun 2005
Location: Wichita, KS
Posts: 273
pburress is starting off with a positive reputation.
Maybe an issue with the carburetor accelerator pump? This is easy to check and replace if necessary. No idea about the chirp...
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Help!! Plz newb here 6.0 chirping loud Mikelangevin 1999 to 2016 Super Duty 8 04-10-2016 12:09 PM
Chirping Noise? Easy, Low Tech Fix! turbinefix 6.4L Power Stroke Diesel 1 02-13-2016 06:30 PM
Chirping DMosser 1997 - 2003 F150 2 07-01-2015 08:41 PM
ZF5 very strange problems, searched for hours.. dropitlow88 Pre-Power Stroke Diesel (7.3L IDI & 6.9L) 61 04-02-2015 10:02 PM
Chirp/squeek in passenger side of dash EatBeef 1999 to 2016 Super Duty 12 03-05-2011 10:10 AM


Go Back   Ford Truck Enthusiasts Forums >

Tags
150, 2005, 54, accelaration, accelerate, acceleration, bronco, cylinder, engine, escape, f250, ford, full, liter, rough, shudders, size

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -5. The time now is 06:46 AM.