Question about 1998 Chevrolet K1500
I replaced intake gasket, idle air control valve, spider injection, and distributor. now i have a detonation issue under any kind of load.
What do you call detonation you are talking about explain detonation.
Posted on Apr 19, 2013
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Posted on Jan 02, 2017
do you get check engine codes?..have you done a leak down test and compression test to determine mechanical engine health?
Posted on Oct 07, 2008
My problem was solved when I repaired my 4 wd activation dash switch. The switch was contacting on 2WD & 4HI at the same time. The front differential activation is vacuum activated possibly creating a tug of war that didn't actually engage it but drained off vacuum from the engine? A theory at best but stumbbled across it because I knew the switch wasn't working properly I repaired it and low and behold rough idle disappeared and all is good for 3 weeks running.
Posted on Dec 10, 2008
I have the diagram you need. If you send me your email I will scan it off and send it to you. email@example.com
Posted on Sep 12, 2009
Have you checked for vaccume leaks?
You've got lots of parts in there, Has the problem been the reason you have replaced all of those, or did it come up while doing some of the repairs?
Posted on Dec 18, 2009
P300 reads as: 'random/multiple misfire' which usually means all cylinders are misfiring intermittently. Suspect a defective crankshaft/camshaft position sensor or weak fuel system pressure. If only one cylinder is misfiring (check by sliding a test light probe [make sure the ground lead is clipped to the engine securely] between each plug wire boot and it's wire at the distributor/coil block to short out that cylinder's spark. The dead cylinder will not change when it's spark is killed. Try a new spark plug first, then test that cylinder's compression if no help. You could have a bad valve. If the old plug was wet with fuel, the injector is probably doing it's job. When this cylinder runs again, that may clear up the backfire problem. Hope this helps!
Posted on Apr 04, 2010
Tips for a great answer:
Here is the common cause of surges, cold stalls, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours.
To correct this problem Buy a can of throttle valve cleaner (it is made by CRC) from the local auto parts store, NEVER USE CARB CLEANING SPRAY, IT DESTROYS THE ANTI-STICK TEFLON COATING, spray it into the air intake through the throttle body of the engine until you have used about half the can, you will need to hold the idle up while you do this, it will try to stall, after this shut the engine down and disconnect the Negative (-) battery cable for 5 minutes. The intake is now clean, if you continue to have the idle speed control problems you may need to seek the help of a professional.
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