Question about 1988 Chevrolet K1500

1 Answer

Engine cranks excessively before engine starts,even after warmed

I have replaced MAP sensor ,distributor ,plugs ,wires,cap&rotor ,Idle air control valve.Truck is 88 Chevy 1/2 ton,5.7.Truck was surging at idle but that seems to be gone.My next thought is fuel pump?

Posted by on

  • delco007 Feb 10, 2009

    I checked fuel pressure it was 8lbs at start up. It dropped if you left key on, then cranking it went back to 8.I replaced fuel pump (in tank).I then checked pressure it was 12lbs.The truck now starts with in 2 to 3 cranks.Thanks so much !!!!.

  • Anonymous Mar 28, 2014

    idel fluctuatws

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,902 Answers

Check your EGR valve make sure that is working properly, if it is then go to the fuel pump, just a cheaper fix to go after the EGR then the fuel pump

Posted on Feb 09, 2009

  • Jeremy Reddick
    Jeremy Reddick Feb 10, 2009

    Congrat glad it works, I hate when you cannot figure something out, bugs me. Have a good day and weekend

×

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

Toyota Rav 4 1997 .Check engine comes on .Codes are P0301,302,303,304116 . What to do.


The engine coolant temperature is high. Your other Codes are for missing cylinders on cylinder 1,2,3,and 4. Get the Codes cleared and start over. Changing the plugs and wires,etc could have generated the missing cylinder Codes.

Autozone,Advance, and Oreilys will scan for free.

Check your engine for an IDLE SPEED CONTROL SOLENOID, which may be in the intake. Or a fuel pressure regulator.

A lot of times people work on the spark side and forget the fuel injectors. They can cause a miss.

Nov 03, 2012 | Toyota Cars & Trucks

3 Answers

No spark


First does the rotor turn when cranking engine?? possible timing chain is out or stripped gear..are you sure it has no spark??did you verify this with a high output spark tester ? did you spray starting fluid in the tbi unit ?

Mar 23, 2012 | 2000 Chevrolet Astro

1 Answer

My engine turns but no spark I changed ignition coil and still no spark,what could it be?


Depending on which engine your car is equipped with; the following components could be at fault.

Crankshaft Position Sensor
Camshaft Position Sensor
ECM (Engine Control Module)
Distributor Cap or Rotor
Fouled Spark Plugs
Bad Plug Wires

If they haven't been replaced in the last 30K miles, I suggest you check and /or replace the the plugs and wires first.

If your engine is equipped with a distributor, check and/or replace the distributor cap and rotor if it hasn't been replaced in the last 30k miles.

If your engine is equipped with crank or cam sensors have them tested.

Mar 21, 2011 | 1990 Volkswagen Cabriolet

1 Answer

1990 Chevy Blazer K5 5.7 engine: has engine ping


The temperature sensor is where I would start. If the sensor tell the computer that the engine is cold it will initiate the warm up mode which includes advancing the timing along with a rich fuel mixture. Unfortunately, there are many sensors that assist in controlling timing and fuel mixtures that it is difficult for me to give you a guaranteed solution.

May 27, 2010 | 1990 Chevrolet S-10 Blazer

1 Answer

95 dodge caravan with no start problem.


Connect a timing light to the number one plug wire and crank the engine. Does the light flash indicating that the Number one is firing? Look at the distributor. If you have a distributor cap and rotor assembly remove the distributor cap and crank the engine. If the rotor turns check the rotor to make sure there is a good contact point and check the distributor cap to ensure there are good contacts. If either is damaged or worn replace them both. If the rotor does not turn you have a broken timing belt or one of the timing belt/chain guides has jammed and the engine needs to be rebuilt.

Sep 08, 2009 | 1995 Dodge Caravan

1 Answer

DIES OUT IN GEAR


check idle speed spark plugs and wires. vacuum leaks fuel pressure could be weak.

Mar 17, 2009 | 1998 Chrysler Sebring

2 Answers

1999 Ford Taurus mechanical problem


Hello,
your problem appears to be the idle control motor located on the air intake manifold it is a small motor that goes bad quite often. Other items that can cause this is a bad /clogged air filter or a tune up (spark plugs and wires), or clogged fuel injectors. to clean the injectors you can buy a container of fuel system cleaner and pour it into the gas tank and as you drive it cleans the system.

Once the fuel system is cleaned via a tankful of cleaner & gas then the idle controller motor would be next on the list to be replaced.

Good Luck !
Rich Lilja

Dec 03, 2008 | 1999 Ford Taurus

Not finding what you are looking for?
Cars & Trucks Logo

406 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

61037 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...