Go Back   The Supercar Registry > General Discussion > Technical & Restoration


Reply
 
Thread Tools Display Modes
  #1  
Old 05-14-2011, 02:49 PM
69L78's Avatar
69L78 69L78 is offline
Yenko Contributing Member
 
Join Date: Dec 2003
Location: PA
Posts: 2,383
Thanks: 26
Thanked 518 Times in 184 Posts
Default Engine misfiring?

I got my car out on Friday for the first time this year and it fired right up and idles perfectly but after warm up I went to cruise around the neighborhood and I could not get out of first gear, as soon as you give it throttle, it pops and runs eratic. I did not have time to check it out, any suggestions on where to start looking for the problem.

Thanks in advance for your input.
Attached Images
 
Reply With Quote
Attachments - The Supercar Registry 25855.jpg
O Garage vBulletin Plugins by Drive Thru Online, Inc.
Click here to view all the pictures posted in this thread...
  #2  
Old 05-14-2011, 03:11 PM
firstgenaddict's Avatar
firstgenaddict firstgenaddict is offline
Yenko Contributing Member
 
Join Date: Jul 2001
Location: Greenville, South Carolina
Posts: 5,596
Thanks: 161
Thanked 949 Times in 459 Posts
Default Re: Engine misfiring?

After I checked my firing order, pulled the dist cap, check the condenser, checked the timing with a light, and assuming there are no radical changes/jumps /erratic readings when running it up in garage. NEXT
I would pull the valve covers and see if I had any loose rocker arms.
__________________
~JAG~
NCRS#65120
68 GTO HO 4 spd Alpine Blue /Parchment 2 owner car
#21783 71 Corvette LT1 45k miles Orig paint - Brandshatch Green - National Top Flight - last known 71 LT1 built.
71 Corvette LT1 42k miles Original paint - Black - black leather - only black LT1 known to exist.
NUMEROUS Lemans blue Camaros,
Monza Red and Daytona Yellow Corvettes
& a Chevelle or two...
Survivors, restored cars, & other photos
https://picasaweb.google.com/lh/myphotos
Reply With Quote
  #3  
Old 05-14-2011, 05:06 PM
Plowman's Avatar
Plowman Plowman is offline
Senior Member
 
Join Date: Jun 2003
Location: Roslyn, PA
Posts: 1,704
Thanks: 0
Thanked 5 Times in 5 Posts
Default Re: Engine misfiring?

You can try this with #5 and #7 cylinders spark plug wires have to be crossed going to the plugs or induction will happen and cause misfiring. Paul
__________________
Reply With Quote
  #4  
Old 05-14-2011, 05:29 PM
SuperNovaSS SuperNovaSS is offline
Yenko Contributing Member
 
Join Date: Sep 2001
Location: Santa Cruz, CA
Posts: 6,563
Thanks: 394
Thanked 701 Times in 365 Posts
Default Re: Engine misfiring?

Maybe the points are corroded or there is moisure in the distributor.



Jason
Reply With Quote
  #5  
Old 05-14-2011, 06:13 PM
kwhizz kwhizz is offline
Yenko Contributing Member
 
Join Date: May 2004
Location: LS Make'um Better Guy
Posts: 7,746
Thanks: 855
Thanked 668 Times in 201 Posts
Default Re: Engine misfiring?

Put some fresh gas in it....
__________________


The Best things in life......Aren't Things
Reply With Quote
  #6  
Old 05-14-2011, 06:48 PM
69L78's Avatar
69L78 69L78 is offline
Yenko Contributing Member
 
Join Date: Dec 2003
Location: PA
Posts: 2,383
Thanks: 26
Thanked 518 Times in 184 Posts
Default Re: Engine misfiring?

Thanks guys for all your input, I will check it out next week. The gas in the car is Cam 2 from last year, hopefully it is still good at $8 per gal.
Reply With Quote
  #7  
Old 05-14-2011, 06:57 PM
x  Baldwin  Motion's Avatar
x Baldwin Motion x  Baldwin  Motion is offline
Senior Member
 
Join Date: Nov 2005
Location: 41N 72 18.5W Sag Harbor NY
Posts: 6,641
Thanks: 218
Thanked 179 Times in 68 Posts
Default Re: Engine misfiring?

This years $12.00 per gal MUST be better.... [img]<<GRAEMLIN_URL>>/rolleyes.gif[/img]
Reply With Quote
  #8  
Old 05-15-2011, 01:18 AM
Mr. Chevy's Avatar
Mr. Chevy Mr. Chevy is offline
Yenko Contributing Member
 
Join Date: Feb 2007
Location: Northern Ohio
Posts: 4,616
Thanks: 286
Thanked 706 Times in 349 Posts
Default Re: Engine misfiring?

Check your spark plugs also.. They do weird things.... Start with the easy/basics.... That Cam 2 won't go bad...

Rich
__________________
"This is Sheriff Buford T. Justice, I'm in pursuit of a black Trans Am, he is all mine so stay out of the way"
Reply With Quote
  #9  
Old 05-15-2011, 03:20 AM
Alss's Avatar
Alss Alss is offline
Yenko Contributing Member
 
Join Date: Feb 2002
Location: The tax State of New Jersey
Posts: 2,542
Thanks: 19
Thanked 54 Times in 19 Posts
Default Re: Engine misfiring?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Mr. Chevy</div><div class="ubbcode-body">Check your spark plugs also.. They do weird things.... Start with the easy/basics.... That Cam 2 won't go bad...

Rich </div></div>

X2
__________________
1969 9566AA COPO Chevelle M-22
1969 Malibu 489 ZL-1 T-56/4.56
1969 Beaumont 540 th400 3.70
1969 Chevelle 300 Deluxe 427 ZL-1 M 22W
1970 Olds 442 W 30 2 door post
1969 Ply. GTX 426 hemi auto. Blue.
1940 Dodge pick up Durango 4X4
1968 Camaro ragtop LSA ZL1
Reply With Quote
  #10  
Old 05-15-2011, 03:37 AM
Salvatore Salvatore is offline
Yenko Contributing Member
 
Join Date: Nov 2002
Location: Pennsylvania
Posts: 9,908
Thanks: 3
Thanked 229 Times in 193 Posts
Default Re: Engine misfiring?

If you put it away last year and it was running good I would first go with a new set of plugs like Rich suggests. Could be carb issues. maybe the Cam 2 ate the accelerator pump up. Check your dwell and make sure the mice did not chew on your plug wires. If it is a BB I bet plugs and maybe some gum from the gas. Suppose to run these cars in the winter you know Jeff. NO lawn ornaments.
Reply With Quote
Reply

Thread Tools
Display Modes

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

Forum Jump


All times are GMT. The time now is 06:35 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.