SPONSORED LINKS

1997 GMC Sierra Hard Starting

Tiny
BIGCUTT
  • MEMBER
  • 1997 GMC SIERRA
  • 7.4L
  • V8
  • 4WD
  • AUTOMATIC
  • 129,000 MILES
While running and idling, everything is normal. All at once it became hard to start. I have to push on the throttle to get it started. When the motor is warmed up, it is even harder starting. Just changed plugs and fuel filter. Regular synthetic oil changes, excellent care and easy use. Very clean motor. Clean air filter, etc.
SPONSORED LINKS
Wednesday, August 19th, 2015 AT 10:27 PM

3 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Scan for codes and check fuel pressure with a gauge auto parts rent it. 56-62 psi
Was this
answer
helpful?
Yes
No
Thursday, August 20th, 2015 AT 5:48 AM
Tiny
BIGCUTT
  • MEMBER
  • 2 POSTS
Thanks, I went to auto parts and asked them to scan. They said if it is not throwing any codes my check engine lights will not be on. There are no lights on while running I thought about fuel pressure, so I will do that. I did listen to the electric fuel pump by turning the key on and not starting the engine. The pump shut of in a few seconds, so I thought that it was hitting its pressure right away, but will test.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, August 20th, 2015 AT 7:29 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
The only good test for a pump is by check pressure with a gauge and volume nothing else.
Was this
answer
helpful?
Yes
No
Thursday, August 20th, 2015 AT 7:57 AM

Please login or register to post a reply.

Related Engine Hard To Start Content

Hard Starting
GUIDE
Hard Starting
Popular Hard Starting Causes
VIEW MORE

Sponsored links