Random stalling

Tiny
CSA1
  • MEMBER
  • 1994 CHEVROLET SILVERADO
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 275,000 MILES
Lately, truck stalls at stop. Starts right back up & idles fine though. Also stalls randomly at idle.
Truck has new distributor, fuel pump, fuel filter, plug wires, & new wire harness for injectors on TBI. Wondering if it could be fuel pressure regulator in throttle body?
Monday, February 8th, 2016 AT 12:02 PM

5 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Try cleaning with choke cleaner first including iac hole. Then check pressure shold be 9-11 psi if tbi
Was this
answer
helpful?
Yes
No
Thursday, September 3rd, 2020 AT 12:46 PM
Tiny
CSA1
  • MEMBER
  • 78 POSTS
Another odd thing, if it drops below freezing, the truck will not start. Turns over, but wont run
Was this
answer
helpful?
Yes
No
Thursday, September 3rd, 2020 AT 12:46 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Scan for codes is this a tbi or pfi truck? It may not be richening the mix not letting it start when cold.
Was this
answer
helpful?
Yes
No
Thursday, September 3rd, 2020 AT 12:46 PM
Tiny
CSA1
  • MEMBER
  • 78 POSTS
No codes present & it's a TBI
Was this
answer
helpful?
Yes
No
Thursday, September 3rd, 2020 AT 12:46 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check coolant temp sensor for connection and corrosion on connector, if it is replace the sensor and connector. Check with sensor in vehicle. Se pic
Was this
answer
helpful?
Yes
No
Thursday, September 3rd, 2020 AT 12:46 PM

Please login or register to post a reply.

Sponsored links