I have a problem with my 2002 impala; After I fixed the fuel filter, had a tune-up done and even replaced the tensioner because a squealing problem persisted. I still cannot get my car over 10mph. Now i heard it could be the fuel pressure regulator or the fuel pump. How could i know for sure?

2002-2006 Cadillac Escalade fuel filter replacement ...

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Aug 14, 2014 - Uploaded by NutzAboutBolts
2002 Cadillac Escalade fuel filter remove and install. ... The interactive transcript could not be loaded. ... 2003-2007 Honda Accord Auto Tensioner remove and install - Duration: 6:36. ...Spark plug replacement 2001 - 2007 GMC 2500HD 6.0L 5.3L tune up Install Remove Replace How to - Duration: 7:30.Missing: dadila ‎eskalada

Check belt , tensioner and pulleys for squealing and definitely replace fuel filter

Have you ever put new spark plug wires on it?

depending on mileage, but possible tune-up could fix it. if already done then check ignition coil pack and ignition wires also spark plugs, check vacuum hoses for leaks or porous, last injectors clogged - use some techron fuel injector cleaner (wal-mart has them). have worked at G.M. dealership for over 15 years, saw that alot.

Check your drive belt tension.

When was your last tune-up? sound like time for a tune up, spark plugs, wire, cap & rotor, air and fuel filter.Oil change if not done yet.

Engine is difficult to start when cold

1. Check the battery condition, battery state of charge and starter motor current draw. Replace the battery if marginal and the starter motor if the current draw is beyond specification.
2. Check the battery cable condition. Clean the battery terminals and replace corroded or damaged cables.
3. Check the fuel system for proper operation. A fuel pump with insufficient fuel pressure or clogged injectors should be replaced.
4. Check the engine's tune-up status. Note the tune-up specifications and check for items such as severely worn spark plugs; adjust or replace as needed. On vehicles with manually adjusted valve clearances, check for tight valves and adjust to specification.
5. Check for a failed coolant temperature sensor, and replace if out of specification.
6. heck the operation of the engine management systems for fuel and ignition; repair or replace failed components as necessary.

Engine is difficult to start when hot

1. Check the air filter and air intake system. Replace the air filter if it is dirty or contaminated. Check the fresh air intake system for restrictions or blockage.
2. Check for loose or deteriorated engine grounds and clean, tighten or replace as needed.
3. Check for needed maintenance. Inspect tune-up and service related items such as spark plugs and engine oil condition, and check the operation of the engine fuel and ignition management system.

If all this stuff hasn't been done before, it's not a bad idea to get it done. It'll have to be dealt with sooner or later.

try some STP fuel treatment, also make sure the air and fuel filters have been changed

Hi Irwin, Your car should only need new sparkplugs. Be certain they are gapped propperly! Other than that,check the air filter. If you can't see light through it, replace. Be sure to go around, not just check in one spot. Check the brake fluid, if down top up and get a shop to check the brake pads. As the pads wear, the fluid level drops to compensate. Check the coolant level, belts, an hoses! Wash an wax! Done! Frankster016