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1997 Chevrolet Silverado Repair Question


Topics covered: Compression, Engine, Fuel pressure.
Mileage: 221 miles.

Asked on January 5, 2013

Chevrolet Silverado Compression Problem

The engine truns bout only hits when letting off start just aquick back fire what could this be? i have changsd the following parts[timeing chain/gears -coil -ingetion pickupcoil dist cap-wires-rotor plugs crank sensior ingnitonswitch . still just the same.please can you help
Avatar Asked by bobby 97

Answer

Replied on January 5, 2013

timing chain???? why?????

check for fuel pressure. check spark and check compression. lets start at basics first

Roy

Tiny Answered by ASEMaster6371 (expert)
24,836 answers provided
Replied on January 5, 2013

thought might have jumped time but didnt help spark is good fuel is good compression good

Tiny Response from bobby 97
1 question asked
Replied on January 5, 2013

what is the fuel pressure??

Roy

Tiny Answered by ASEMaster6371 (expert)
24,836 answers provided

Replied on January 5, 2013

60at start 48 while cranking

Tiny Response from bobby 97
1 question asked
Replied on January 5, 2013

48 cranking is too low. needs to be 60-65

60 at start??? i thought it did not run???

what motor???

Roy

Tiny Answered by ASEMaster6371 (expert)
24,836 answers provided
Replied on January 5, 2013

60 at srart of pump turn on / 48 while trying to start 4.3 engine

Tiny Response from bobby 97
1 question asked

Replied on January 5, 2013

60 psi when cranking and then a loud back fire but want start and run

Tiny Response from bobby 97
1 question asked
Replied on January 5, 2013

what else can i try?

Tiny Response from bobby 97
1 question asked