Skip the auto shop - Our mechanics make house calls

Q: i have a misfire uner load on a 88 k5 blazer i change plugs and wires

asked by on

i did the wires twice i am still seeing blue light coming from the wire were it corrnect to the plug i have change evey thing but the distributor cap but its looks fair new

My car has 152000 miles.
My car has an automatic transmission.

The electrical spark will always look for the shortest path to ground. If the spark plugs are running lean of fuel then the spark plug gap may be harder for the spark to jump to the ground on the wire. Find out which cylinder is misfiring and then check the plug to see if it is running lean. Have a compression test done to see if cylinders are strong or have low compression. Have the intake and injectors cleaned of carbon. You may have excessive carbon built up on the intake valves causing the cylinders to run lean. If you need still need more help, YourMechanic offers a repair and diagnosis service preformed by a mobile, professional mechanic that will commute to your location to inspect and resolve the misfiring.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  • Home
  • Questions
  • i have a misfire uner load on a 88 k5 blazer i change plugs and wires

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: How do you remove the CV axle on driver side?

Hi there. On a 2004 Chevy Blazer, you can remove the CV axle shaft on the driver side by removing the wheel and tire, the brake calipers, brake pads, rotor, center hub nut, wheel bearings and loosen the ball joints...

Q: Car running sluggish then dies - 1988 Mercedes-Benz 420SEL

Hello. I would check the fuel filter first. If the filter is clogged then this will occur. If the fuel filter is fine then the air flow meter needs to be checked. This is the most common part to fail...

Q: Hi there, I have a Chevy blazer ZR2 and replaced my Sunroof. Now when it rains, water comes in from the top near the passenger back seat.

Hi there. Check the seal to the sunroof and see if its torn or damaged. Also, check the sunroof and make sure that its mounted properly on the track. The sunroof could be out of alignment causing the water to...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...