SPONSORED LINKS

1990 Pontiac Sunbird GAS SMELL POOR AND NOW GET ABOUT 6 MPG

Tiny
BJCCM
  • MEMBER
  • 1990 PONTIAC SUNBIRD
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 110,000 MILES
I put a new timming belt verified timming marks are set correct. The car starts fine there is no pickup but as long as you take your time it will get up to speed. When you first start out you get a strong gas smell with a lot of black exhaust after you are moving or stop and stop again, without turning the engine off, it's not as bad. I've replaced the plugs, distriutor cap & rotor, spark plug wires, fuel filter and air filters. There are no gas leaks that I can find or driping on the ground.
SPONSORED LINKS
Thursday, May 7th, 2009 AT 3:04 PM

2 Replies

Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Do a fuel pressure test
turn key off and check if pressure go down
check for a leaky injectors and or fuel pressure regulator
also check EGR and exhaust system back pressure
let me know

*****************************************
need manual CHECK IT @
https://www.2carpros.com/kpages/auto_repair_manuals.htm
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, May 7th, 2009 AT 5:04 PM
Tiny
TIMJAMMORGAN
  • MEMBER
  • 8 POSTS
Check that the O2 sensor is not bad
Was this
answer
helpful?
Yes
No
Monday, September 14th, 2009 AT 1:59 PM

Please login or register to post a reply.

Related Fuel Leak Content

VIEW MORE

Sponsored links