SPONSORED LINKS

1996 GMC C1500 replaced 305 with 350

Tiny
JIM O
  • MEMBER
  • 1996 GMC C1500
  • V8
  • 4WD
  • AUTOMATIC
  • 202,000 MILES
Replaced original 305 engine with a 1998 350 engine.
Engine runs great, except when maintainibg a highway speed, it misses. It accelerates fine, and it idles fine. However, trying to run at 50-60 mph or any other steady speed, it acts like it has the hiccups. What do I need to do?
SPONSORED LINKS
Monday, December 1st, 2008 AT 5:56 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,300 POSTS
Hi:
There could be many causes. Therefore, I recommend having the computer scanned for trouble codes. It will limit the cause and point us in the right direction. Let me know what you find.

Joe
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Monday, December 15th, 2008 AT 10:31 AM

Please login or register to post a reply.

Related Engine Hesitate Content

Vacuum Leak Test and Repair
VIDEO
Vacuum Leak Test and Repair
Instructional repair video
Hesitation
GUIDE
Hesitation
An engine hesitation is an interruption of continuous power during acceleration. When a engine is hesitating it will cause the car to lunge or surge which will cause a...
VIEW MORE

Sponsored links