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Question

The engine quit by itself, changed fuel filter, now it starts, idles and surges then slows down and quits running.

Submitted: 442 days and 11 hours ago.
Category: Chevy
Value: $15
Status: CLOSED
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Optional Information

n/a n/a Silvardo Suburb 350 cid

Already Tried:
I replaced the fuel filter since the old filter was difficult to blow through.

Posted by john 442 days and 9 hours ago.

Info Request

Hi XXXXXXXX. Thank you for asking your question on Just Answer. The other Experts and I are working on your answer. By the way, it would help us to know:
-What year is your Chevy?
-What model is your Chevy?
-How many miles are on your Chevy?
-What type of engine is in your Chevy?
-What have you already tried?

Thank you again for trusting us with your problem. Please reply as soon as possible so that we can finish answering your question.

Hello XXXXXXXX,

 

 

442 days and 9 hours ago.

Reply

Year 1987

Silvarado Suburban

Miles 172,967



Edited by XXXXXXXX on 9/5/2008 at 12:54 PM

Accepted Answer

Check the fuel pressure at the engine,should be 9-15 psi & holding with key on.Next check for fuel flow,should pump a pint in 10-15 seconds.A restricted fuel filter wears on the fuel pump.

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Expert: john
Pos. Feedback: 99.7 %
Accepts: 
Answered: 9/5/2008

Master A.S.E Automotive technician

A.S.E MasterTechnician A1-A8 w/L1,38 years experience General Motors Master Technician

442 days and 9 hours ago.

Reply

I am sending you more info, pls read, Frank

442 days and 8 hours ago.

Reply

Year 1987 Model Silverado Suburban Miles 172,967 Engine 350 cid Fuel Injection Thank you for the heads up on the fuel pressure and output of a normal pump. 1. I have Removed and Replaced the Fuel Filter Aug 29. The old filter does have restriction, it is difficult to blow thru. 2. Prior to this failure the engine became more and more difficult to start, read longer cranking time. 3. Based on all past repair receipts from original owner, I am second owner from Sep 07. The last time fuel sys was worked on was in Feb 92 at approx. 51,000 miles when the fuel pump and tank was replaced. In April 92 the fuel tank unit? was replaced. The fuel gauge reads high when tank is full. Normal? 4. I would need to remove many gallons of fuel from the tank since the day before the problem I topped it off, pls advise the safest way of doing this? I do have a stand alone electric fuel pump, Jerry can etc. 5. Could anything else in the vehicle have failed to cause this problem? Thank you for your help John, Frank

Accepted Answer

I have replaced a million of these electric fuel pumps,it's almost like they are designed to fail.The way this system works is when you turn the key on,the ECM sends a message to the fuel pump relay for 2 seconds & primes the line w/pressure.When the engine starts & oil pressure comes up voltage is changed to the oil pressure switch & this circuit feeds the pump as long as the engine has oil pressure & ECM signal.

Draining the fuel tank with a stand alone pump needs to be done before removing the tank.In the shop,I unbolt the bed (8 bolts),raise the vehicle about head high ,put 2 jack stands under the bed rails & lower the truck which in turn raises the front of the bed.When there is enough room I step in & remove the sender assembly without removing the tank.If this is your problem & you replace the pump .go with the fuel sender assembly.This unit has pump & level sensor complete.

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Expert: john
Pos. Feedback: 99.7 %
Accepts: 
Answered: 9/5/2008

Master A.S.E Automotive technician

A.S.E MasterTechnician A1-A8 w/L1,38 years experience General Motors Master Technician

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