1998 Chevy Silverado cutting out

MIKE15

MEMBER
1998 CHEVROLET SILVERADO
V8
4WD
AUTOMATIC
187,000 MILES

I've replaced the spark plugs, spark plug wires, disteribauter cap and rotor, my truck will start but then dies like you turned the ignition off. Then ill be driving down the road and it will start cutting out, the rpm gauge drops and the vehicle feels like its chugging, fuel pump works fine, then ill pull up to a stop light and it dies again so I start it and its fine but then does it again. Just looking for some thoughts on what it could be thanks

8 Replies

JACOBANDNICKOLAS

MECHANIC
109,755 POSTS

Have you actually checked fuel pump pressure? Also, has the check engine light ever come on?

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Sunday, September 26th, 2010 AT 12:21 AM

MIKE15

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5 POSTS

No I havent checked the fuel pump pressure, and the check engine light is on

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Sunday, September 26th, 2010 AT 8:17 AM

JACOBANDNICKOLAS

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Start with the check engine light. Have the computer scanned to see what trouble codes are stored. Most parts stores will do it for free.

Have that done and let me know what you find.

Joe

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Monday, September 27th, 2010 AT 7:27 AM

MIKE15

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Had that done had to replace egr, throttle posotioning sensor, mafs, and gas cap, fuel pressure is good, still giving me problems mafs reading is erratic now according to a scanner. Could it be I got a bad one or wiring harness?

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Monday, September 27th, 2010 AT 6:39 PM

JACOBANDNICKOLAS

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109,755 POSTS

It could be either one, wiring or part. Since the part is most likey still under warranty, I would try to replace that first before tracking a wiring issue.