Question about 1999 Chevrolet Suburban

1 Answer

I replaced cap and rotor, plugs and plug wires. It ran better but seemed to hesitate when you initially step on the gas. Next to the ignition coil is another module mounted on a heat sink. I think it is ignition coil driver. Would the driver be causing a problem with hesitation and possible mis-fire. Vehicle is a 1999 Suburban. 5.7 vortec engine.

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 17 Answers

Check/change your air and fuel filter cause that part that you are talking about cost 60 or more dollars

Posted on Jul 24, 2009

  • Kaes Jul 24, 2009

    check/change your air and fuel filter cause that part that you are talking about cost 60 or more dollars

  • trina9098 Jun 30, 2011

    Change Crankshaft
    Position Sensor

×

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get to try the service completely Free afterwhich it costs $6 per call and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

3 Answers

Ignition mystery! 1994 GMC Suburban 2500 5.7 mtr. No spark to spark plugs. Have spark from coil to distributor. Have changed coil wire, cap, rotor, ignition module, and coil. have 12.5 volts going to...


I guess you could have the ignition analyzed on an oscilloscope. Maybe a tech could see something then.
I always heard the only gap was the spark plug gap-the rotor has no gap-are you sure you got the correct rotor? And does it touch the top distributor cap coil wire tower?

Let us know. It is a mystery worthy of a solution.

Sep 21, 2013 | Chevrolet Suburban 2500 Cars & Trucks

2 Answers

93 jeep grand cherokee wont start


Take 2 screws out of PCM and replace with shorter ones

Oct 23, 2012 | 1997 Jeep Grand Cherokee

1 Answer

My 2002 taurus is hesitating so we tried gas treatment and replaced fuel filter...it's better but still hesitates and idles rough. What's next to look at?


When using gas treatment, it's a good idea to pull the spark plugs after 500 miles. Most engine / gas cleaners are effective but the impurities burn off on the plugs and they can become fouled. Another place to look is the distributor cap and rotor. A tiny crack in the cap is all it takes for an engine to run rough. Lastly, inspect the spark plug wires very closely. Look for any bare spots and ensure that they are tight both at the spark plug and at the distributor cap.

Jul 02, 2011 | Ford Taurus Cars & Trucks

1 Answer

Replaced bad fuel pump, installed new relay and fuel filter, engine turns over but is not firing on..... positive the fuel pump is pumping gas and checked to see if gas was going thru fuel filter. Tried...


Hi, Ok you have confirmed that it's not a fuel problem. You need to check for spark. Pull the coil wire off of the coil(secondary lead-looks like a spark plug wire) Have some one crank it over and listen for a popping sound. IF yes, spark is at the coil, that means all ignition sensors are working. Next check for spark at ends of wires after cap. IF no replace cap and rotor. IF yes remove a couple spark plugs and check for fouling(wet, fuel etc...) IF yes replace or clean plugs and retest for starting. IF no spark is present at coil you need to scan computer and watch for rpm signal. IF no rpm signal, replace crankshaft sensor with OEM delco part. BIGGEST problem with these engines is Cap and Rotor burn out.

May 23, 2011 | 2002 Chevrolet Blazer

1 Answer

I have a 1996 GMC Jimmy with a 4.3L. The car is hard to start after it sits for the day. I found an oxidized distributer. I sanded the posts and it ran fine for about a month. I then replaced the...


moisture in your cap causes oxidation. You should check to make sure the seal for you distributor between the distributor and the cap is still good. Also a faulty ignition system such as a problematic coil or high resistance in your ignition wires can lead to ignition related problems. Doing a partial tune doesn't always work. Do the wires, plugs, cap, rotor, fuel filter, air filter, PVC valve and depending on the mileage the ignition coil.

Apr 07, 2010 | 2005 Chevrolet Avalanche

5 Answers

1988 chevy 350 problem


The crank angle sensor maybe bad. It sends a signal to the computer so the spark plugs fire up.

Sep 09, 2009 | Cars & Trucks

3 Answers

Astro HESITATES upon initial accellerating.


My 1996 Astro does the same thing... It has new fuel pump, fuel filter, plugs, wires, cap, rotor, maf sensor, ignition coil, alt., battery, cat converter, im stumped...

Jul 04, 2009 | 1989 Cadillac Sedan DeVille

1 Answer

Low idle cut out, stall at take off


try the throttle position sensor, when these go bad they have the same characteristics as what you described

Apr 30, 2009 | 1989 Chevrolet S-10 Blazer

2 Answers

94 toyota camery no spark


I had the same problem recently but replacing the ignition Coil under the distributor (inside) solved the problem. Also replaced the distributor Cap and rotor at the same time.

Jul 18, 2008 | 1994 Toyota Camry

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

179 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

76630 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8514 Answers

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

Answer questions

Manuals & User Guides

Loading...