What causes a GMC Sierra 1500 to lean?
The only other thing that will cause a lean condition is low fuel pressure. A vacuum leak will be problematic at idle and go away with higher rpms. Low fuel pressure will get much worse at higher rpms. 123 people found this helpful.
What to do when your GMC Sierra stops running?
If you have fuel pressure after the above tests pull a spark plug and check for spark. If you don’t have spark check the cam position sensor in the distributor. If you have spark with no pressure it is the pump.
What should fuel pressure be in a GMC Sierra 1500?
I assume there really is no way of testing the the regulator itself considering it’s incorporation. 38 people found this helpful. The test is: 12-15 psi when the key is turned on and the pump will shut off within 3-5 seconds and the fuel pressure should drop to 12-13 psi. 11 being the bare minimum and 13 the Max.
What kind of idle does a GMC Sierra have?
After the truck starts and is warm at a stable idle in park/neutral it’ll rev up fine. But the stable idle won’t last long, it’ll idle low and rough. Mpg has decreased drastically and give off a rich smell when running.
The only other thing that will cause a lean condition is low fuel pressure. A vacuum leak will be problematic at idle and go away with higher rpms. Low fuel pressure will get much worse at higher rpms. 123 people found this helpful.
What does rough idle mean on a GMC Sierra?
rough idle, stalling, loss of power. o2 sensor code 44 (lean) Replaced: coolant temp sensor, tps, map sensor, fuel filter, and o2 sensor. It will run normal on occasion but only lasts about 45 seconds or so.
What does the fuel smell like in a GMC Sierra 1500?
If so pull the air filter off and sniff the throttle body for a fuel smell. If the diaphragm has ruptured it will literally be like putting a hose with fuel into the intake and running it full.
I assume there really is no way of testing the the regulator itself considering it’s incorporation. 38 people found this helpful. The test is: 12-15 psi when the key is turned on and the pump will shut off within 3-5 seconds and the fuel pressure should drop to 12-13 psi. 11 being the bare minimum and 13 the Max.
Where did the 1993 GMC Sierra 1500 come from?
1st owner purchased on 07/20/93 and owned in CO until 11/16/04 • 2nd owner purchased on 11/16/04 and owned in CO until 10/15/10 • 3rd owner purchased on 06/01/18 and owned in CO until .
When was the GMC Sierra 1500 last serviced?
1st owner purchased on 07/06/94 and owned in MI until 11/21/11 • 2nd owner purchased on 11/21/11 and owned in MI until 05/19/21. 1st owner drove an estimated 0 miles/year • 2nd owner drove an estimated 6,278 miles/year. Last serviced at 50,811 miles in Grandville, MI on 04/20/12 • Vehicle serviced • Oil and filter changed.
Is the 1996 GMC Sierra 1500 for sale?
Classic Car Addict of Mesa would like to present this 1996 GMC Sierra 1500 4X4 Extended Cab Shortbed for sale. The fourth generation of the C/K series is a range of trucks that was manufactured by More Info › 350 V8, AUTO, SHORTBOX, 92,000 MILES, 2WD,.
What kind of truck is the GMC Sierra?
The GMC Sierra is a full-size, heavy-duty pickup truck. Read more General Motors reviews to learn about other models. This company is not yet accredited. To learn more, see reviews below or submit your own.
Why does my GMC Sierra 1500 run rough at idle?
The spray smoothing out the rough rpm is an indication of the engine running lean, could be low fuel pressure, could be a vacuum leak. With it running rough at an idle and smoothing out at a higher rpm is a general sign of a vacuum leak.