LT1 Hard to start

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Sep 22, 2017 | 01:33 PM

Tedg

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LT1 Hard to start

My 1994 LT1 has become very hard to start. Must crank it 4 or 5 times. Then it sputters (seemingly on one cylinder) then it starts. Idles roughly, and at a higher RPM, 1500.

Runs O.K. when driving.

Sep 23, 2017 | 06:26 PM

96lt1m6

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From: LA$ VEGA$

May need
New cap and rotor-
New spark plugs
Fuel filter
Check fuel pressure.. pressure may be bleeding off

Sep 24, 2017 | 04:42 PM

95mysticta

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From: Oshawa, Ontario

have you checked for stored codes?

Sep 26, 2017 | 02:55 PM

SS RRR

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From: Jackstandican

Vacuum leak maybe? Does it do this once it's warmed up?

Sep 26, 2017 | 05:30 PM

nomoneyz

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From: Apple Valley - So Cal

Could be ignition related or fuel related. Check for codes, check fuel pressure, when was the last tune up done, and is your water pump leaking?

Sep 29, 2017 | 03:04 PM

LT1

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From: NorCal

Might have bad check valve on the fuel pump which causes extend crank. Put fuel pressure gauge on it, and see if it holds pressure after priming up.

I had same problem ended up putting race tronix pump and hot wire kit. Now mine starts first try.

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