Bad miss 5.7 Vortex

Asked by Apr 09, 2016 at 12:44 PM about the 1997 Chevrolet Tahoe 4 Dr LS SUV

Question type: Maintenance & Repair

I've got a bad miss all of a sudden.
Plugs,wires,cap, all new. Fuel pressure test
revealed that the pressure goes up to 60psi.
once it's started. However just as soon as
the fuel pump kicks off fuel pressure
immediately drops down to only 10psi. I'm
unsure whether I should try the fuel pump or
fuel pressure regulator first?

1 Answer

87,075

That looks like a stuck injectors for the pressure to drop that quickly, as this is the spyder system it would be advisable to replace the whole thing. see pic.

Your Answer

Add photo

Related Questions

Search Chevrolet Tahoe Questions

Chevrolet Tahoe Experts

#1 FordNut
FordNut
Reputation 810
#2 Tom Demyan
Tom Demyan
Reputation 720
#3 Rowefast
Rowefast
Reputation 650
View All

Related Models For Sale

Used GMC Yukon
519 Great Deals out of 17,127 listings starting at $1,799
Used Chevrolet Suburban
462 Great Deals out of 18,781 listings starting at $1,399
Used Ford Expedition
418 Great Deals out of 24,741 listings starting at $1,999
Used Ford Explorer
936 Great Deals out of 73,994 listings starting at $750
Used Ford F-150
2,700 Great Deals out of 212,349 listings starting at $1,000
Used Dodge Durango
299 Great Deals out of 24,117 listings starting at $1,500
Used Toyota 4Runner
316 Great Deals out of 20,547 listings starting at $2,295
Used Jeep Grand Cherokee
843 Great Deals out of 68,676 listings starting at $864
Used GMC Sierra 1500
938 Great Deals out of 62,274 listings starting at $1,395

Used Cars For Sale

2017 Chevrolet Tahoe For Sale
6 Great Deals out of 8,036 listings starting at $35,928
2016 Chevrolet Tahoe For Sale
84 Great Deals out of 3,186 listings starting at $31,448
2015 Chevrolet Tahoe For Sale
53 Great Deals out of 2,254 listings starting at $27,412
2014 Chevrolet Tahoe For Sale
52 Great Deals out of 749 listings starting at $12,795
2013 Chevrolet Tahoe For Sale
86 Great Deals out of 1,825 listings starting at $11,795