GMC S15 Cold Start Injector Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(4)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(4)

Cold Start Injector Replacement Service

How much does a Cold Start Injector Replacement cost?

On average, the cost for a GMC S15 Cold Start Injector Replacement is $106 with $11 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1983 GMC S15V6-2.8LService typeCold Start Injector ReplacementEstimate$136.55Shop/Dealer Price$151.94 - $175.61
1987 GMC S15L4-2.5LService typeCold Start Injector ReplacementEstimate$116.55Shop/Dealer Price$131.96 - $155.64
1985 GMC S15L4-2.5LService typeCold Start Injector ReplacementEstimate$116.55Shop/Dealer Price$131.96 - $155.64
1988 GMC S15L4-2.5LService typeCold Start Injector ReplacementEstimate$116.55Shop/Dealer Price$131.94 - $155.60
1984 GMC S15V6-2.8LService typeCold Start Injector ReplacementEstimate$116.55Shop/Dealer Price$131.97 - $155.67
1990 GMC S15V6-2.8LService typeCold Start Injector ReplacementEstimate$116.55Shop/Dealer Price$131.96 - $155.64
1985 GMC S15L4-1.9LService typeCold Start Injector ReplacementEstimate$121.55Shop/Dealer Price$136.82 - $160.40
1986 GMC S15L4-2.5LService typeCold Start Injector ReplacementEstimate$121.55Shop/Dealer Price$137.19 - $161.06
Show example GMC S15 Cold Start Injector Replacement prices

What is the Cold Start Injector all about?

The cold start injector is also known as the cold start valve. The part is located on the cold air intake, which is found on the intake manifold. It is a fuel injector that is controlled electronically. The cold start injector works only when the engine has a cold start, or when the engine’s temperature is below a certain point. When this happens, a computer tells the injector to inject more fuel into the mixture that goes through the cylinders to the engine. The goal is for the engine to have an easier and faster start even when it is cold.

It is important to note that the temperature is referring to that of the engine, not the outside weather. When the cold start injector isn’t working properly, the engine will sound rough and will have trouble idling unless pressure stays on the pedal to increase the amount of fuel that goes into the manifold. The engine may keep dying every time it is started until it warms up enough.

Keep in mind:

  • The cold start injector also helps moderate engine speeds while improving performance and even fuel economy.
  • Another job of the cold start injector is to help control engine idle speed.
  • The cold start injector wires are separate from other injectors and they are often screwed in.
  • The injector can be tested for proper working order.

How it's done:

  • The Cold Start Injector is verified that it needs to be replaced. The electrical connector is then disconnected.
  • The defective Cold Start Injector is unscrewed from the housing and removed.
  • After the new Cold Start Injector is installed and secured into the housing, the fuel line is connected.
  • The electrical connection is then connected and the Cold Start Injector is tested for operation.
  • The vehicle is road tested to ensure proper operation of the Cold Start Injector and checked for leaks.

Our recommendation:

If the engine sounds unusual when idling or if it has trouble starting when it is cold, you should have one of our expert mechanics inspect the cold start injector. The technician can test it with a diagnostic meter to determine the issue.

What common symptoms indicate you may need to replace the Cold Start Injector?

  • Engine won’t start or stalls
  • Engine runs poorly
  • Engine stops when you take your foot off the pedal

How important is this service?

The engine may not start when the cold start injector stops working, so it is important to have it tested before you are stranded.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert GMC mechanics

Real customer reviews from GMC owners like you.

Excellent Rating

(4)

Rating Summary
4
0
0
0
0
4
0
0
0
0

Timothy

22 years of experience
107 reviews
Timothy
22 years of experience
GMC S15 V6-2.8L - Valve Cover Gasket - Tacoma, Washington
He's great!

Johnathon

9 years of experience
158 reviews
Johnathon
9 years of experience
GMC S15 V6-4.3L - Tune-up - Fresno, California
Explained everything easily. Didn't seem to be in a rush, and got my vehicle in order. Thank you, Thank you, Thank you!

Johnathon

9 years of experience
158 reviews
Johnathon
9 years of experience
GMC S15 V6-2.8L - Air Shocks Replacement (Rear) - Clovis, California
Very good and efficient.

Colby

14 years of experience
66 reviews
Colby
14 years of experience
GMC S15 V6-2.8L - Car is overheating - Denver, Colorado
Colby was early and got right to work. Finished quickly and patiently explained issues and solutions.

Excellent Rating

(4)

Rating Summary
4
0
0
0
0
4
0
0
0
0
Number of GMC S15 services completed
44+
services done by our mechanics
TOTAL NUMBER OF EXPERT GMC MECHANICS
900+
experts on our platform

Recent articles & questions

P0221 OBD-II Trouble Code: Throttle/Pedal Position Sensor/Switch B Circuit Range/Performance Problem
P0221 P0221 Code Definition Throttle/Pedal Position Sensor/Switch B Circuit Range/Performance problem What the P0221 code means This code means that the voltage or resistance in the circuitry of the throttle position sensor has fallen out of the acceptable range specified...
The Traveler’s Guide to Driving in New Zealand
New New Zealand has tons of things to see and do. It is the home of Middle Earth, as this is where Peter Jackson filmed some the most famous films in fantasy history. You can find plenty of wonderful attractions...
How to Replace a Starter Relay
Starter relays are faulty if there are problems starting the engine, the starter stays on after cranking, or a clicking noise comes from the starter.

Cv joint keeps breaking

Hello, thank you for writing in. The vehicle may be experiencing one of several different issues. The first thing to consider is the quality of the replacement you purchased. Re-manufactured CV joints are not terribly uncommon. When you purchase the...

My window on my passenger side won't roll down and the lock button doesn't lock the doors.

Hello, thank you for writing in. Your issue is most likely a switch. The window motor would not effect the door lock functions. The only true way to know is to test the power available to the switch and see...

I installed a after market radio in my 2002 Cadillac Deville and no sounds will come from my speakers. But when I put my stock rad

Your car might have a built in amplifier that requires a 12 volt signal to be sent in order to turn on the amplifier. The wiring harness for your stock radio may already accommodate that but the new radio has...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (844) 997-3624 · hi@yourmechanic.com